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Finding the Fourth Proportional to 239,459.66, 330,484.20 and 137,516.96

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Solution

The fourth proportional to 239,459.66, 330,484.20 and 137,516.96 is: 189,790.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,459.66 : 330,484.20 = 137,516.96 : x
  2. Step 2: Convert to fraction form
    239,459.66/330,484.20 = 137,516.96/x
  3. Step 3: Cross multiply
    239,459.66x = 330,484.20 × 137,516.96
  4. Step 4: Simplify right side
    239,459.66x = 45,447,182,512.03
  5. Step 5: Solve for x
    x = 45,447,182,512.03/239,459.66
  6. Step 6: Final answer
    x = 189,790.56

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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.