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Finding the Fourth Proportional to 402,463.36, 555,366.88 and 232,708.40

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Solution

The fourth proportional to 402,463.36, 555,366.88 and 232,708.40 is: 321,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,463.36 : 555,366.88 = 232,708.40 : x
  2. Step 2: Convert to fraction form
    402,463.36/555,366.88 = 232,708.40/x
  3. Step 3: Cross multiply
    402,463.36x = 555,366.88 × 232,708.40
  4. Step 4: Simplify right side
    402,463.36x = 129,238,538,057.79
  5. Step 5: Solve for x
    x = 129,238,538,057.79/402,463.36
  6. Step 6: Final answer
    x = 321,118.77

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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.