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Finding the Fourth Proportional to 576,071.74, 864,107.70 and 155,347.66

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Solution

The fourth proportional to 576,071.74, 864,107.70 and 155,347.66 is: 233,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,071.74 : 864,107.70 = 155,347.66 : x
  2. Step 2: Convert to fraction form
    576,071.74/864,107.70 = 155,347.66/x
  3. Step 3: Cross multiply
    576,071.74x = 864,107.70 × 155,347.66
  4. Step 4: Simplify right side
    576,071.74x = 134,237,109,182.98
  5. Step 5: Solve for x
    x = 134,237,109,182.98/576,071.74
  6. Step 6: Final answer
    x = 233,021.51

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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.