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Finding the Fourth Proportional to 239,248.76, 330,210.95 and 137,343.06

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Solution

The fourth proportional to 239,248.76, 330,210.95 and 137,343.06 is: 189,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,248.76 : 330,210.95 = 137,343.06 : x
  2. Step 2: Convert to fraction form
    239,248.76/330,210.95 = 137,343.06/x
  3. Step 3: Cross multiply
    239,248.76x = 330,210.95 × 137,343.06
  4. Step 4: Simplify right side
    239,248.76x = 45,352,181,631.79
  5. Step 5: Solve for x
    x = 45,352,181,631.79/239,248.76
  6. Step 6: Final answer
    x = 189,560.78

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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.