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Finding the Fourth Proportional to 538,870.76, 808,443.44 and 159,805.32

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Solution

The fourth proportional to 538,870.76, 808,443.44 and 159,805.32 is: 239,748.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,870.76 : 808,443.44 = 159,805.32 : x
  2. Step 2: Convert to fraction form
    538,870.76/808,443.44 = 159,805.32/x
  3. Step 3: Cross multiply
    538,870.76x = 808,443.44 × 159,805.32
  4. Step 4: Simplify right side
    538,870.76x = 129,193,562,631.10
  5. Step 5: Solve for x
    x = 129,193,562,631.10/538,870.76
  6. Step 6: Final answer
    x = 239,748.70

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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.