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Finding the Fourth Proportional to 314,892.69, 472,251.21 and 87,133.44

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Solution

The fourth proportional to 314,892.69, 472,251.21 and 87,133.44 is: 130,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,892.69 : 472,251.21 = 87,133.44 : x
  2. Step 2: Convert to fraction form
    314,892.69/472,251.21 = 87,133.44/x
  3. Step 3: Cross multiply
    314,892.69x = 472,251.21 × 87,133.44
  4. Step 4: Simplify right side
    314,892.69x = 41,148,872,471.46
  5. Step 5: Solve for x
    x = 41,148,872,471.46/314,892.69
  6. Step 6: Final answer
    x = 130,675.86

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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.