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Finding the Fourth Proportional to 235,569.76, 325,031.30 and 137,437.70

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Solution

The fourth proportional to 235,569.76, 325,031.30 and 137,437.70 is: 189,631.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,569.76 : 325,031.30 = 137,437.70 : x
  2. Step 2: Convert to fraction form
    235,569.76/325,031.30 = 137,437.70/x
  3. Step 3: Cross multiply
    235,569.76x = 325,031.30 × 137,437.70
  4. Step 4: Simplify right side
    235,569.76x = 44,671,554,460.97
  5. Step 5: Solve for x
    x = 44,671,554,460.97/235,569.76
  6. Step 6: Final answer
    x = 189,631.96

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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.