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Finding the Fourth Proportional to 358,880.07, 538,291.84 and 156,471.40

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Solution

The fourth proportional to 358,880.07, 538,291.84 and 156,471.40 is: 234,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,880.07 : 538,291.84 = 156,471.40 : x
  2. Step 2: Convert to fraction form
    358,880.07/538,291.84 = 156,471.40/x
  3. Step 3: Cross multiply
    358,880.07x = 538,291.84 × 156,471.40
  4. Step 4: Simplify right side
    358,880.07x = 84,227,277,813.38
  5. Step 5: Solve for x
    x = 84,227,277,813.38/358,880.07
  6. Step 6: Final answer
    x = 234,694.78

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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.