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Finding the Fourth Proportional to 615.74, 923.58 and 153.51

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Solution

The fourth proportional to 615.74, 923.58 and 153.51 is: 230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.74 : 923.58 = 153.51 : x
  2. Step 2: Convert to fraction form
    615.74/923.58 = 153.51/x
  3. Step 3: Cross multiply
    615.74x = 923.58 × 153.51
  4. Step 4: Simplify right side
    615.74x = 141,778.77
  5. Step 5: Solve for x
    x = 141,778.77/615.74
  6. Step 6: Final answer
    x = 230.26

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.