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Finding the Fourth Proportional to 316,453.92, 474,347.16 and 216,587.40

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Solution

The fourth proportional to 316,453.92, 474,347.16 and 216,587.40 is: 324,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,453.92 : 474,347.16 = 216,587.40 : x
  2. Step 2: Convert to fraction form
    316,453.92/474,347.16 = 216,587.40/x
  3. Step 3: Cross multiply
    316,453.92x = 474,347.16 × 216,587.40
  4. Step 4: Simplify right side
    316,453.92x = 102,737,618,081.78
  5. Step 5: Solve for x
    x = 102,737,618,081.78/316,453.92
  6. Step 6: Final answer
    x = 324,652.70

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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.