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Finding the Fourth Proportional to 903.34, 1,246.37 and 525.16

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Solution

The fourth proportional to 903.34, 1,246.37 and 525.16 is: 724.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.34 : 1,246.37 = 525.16 : x
  2. Step 2: Convert to fraction form
    903.34/1,246.37 = 525.16/x
  3. Step 3: Cross multiply
    903.34x = 1,246.37 × 525.16
  4. Step 4: Simplify right side
    903.34x = 654,543.67
  5. Step 5: Solve for x
    x = 654,543.67/903.34
  6. Step 6: Final answer
    x = 724.58

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.