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Finding the Fourth Proportional to 538,264.32, 807,392.48 and 138,871.20

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Solution

The fourth proportional to 538,264.32, 807,392.48 and 138,871.20 is: 208,305.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,264.32 : 807,392.48 = 138,871.20 : x
  2. Step 2: Convert to fraction form
    538,264.32/807,392.48 = 138,871.20/x
  3. Step 3: Cross multiply
    538,264.32x = 807,392.48 × 138,871.20
  4. Step 4: Simplify right side
    538,264.32x = 112,123,562,568.58
  5. Step 5: Solve for x
    x = 112,123,562,568.58/538,264.32
  6. Step 6: Final answer
    x = 208,305.77

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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.