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Finding the Fourth Proportional to 487,253.32, 672,406.50 and 272,392.36

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Solution

The fourth proportional to 487,253.32, 672,406.50 and 272,392.36 is: 375,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,253.32 : 672,406.50 = 272,392.36 : x
  2. Step 2: Convert to fraction form
    487,253.32/672,406.50 = 272,392.36/x
  3. Step 3: Cross multiply
    487,253.32x = 672,406.50 × 272,392.36
  4. Step 4: Simplify right side
    487,253.32x = 183,158,393,414.34
  5. Step 5: Solve for x
    x = 183,158,393,414.34/487,253.32
  6. Step 6: Final answer
    x = 375,899.73

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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.