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Finding the Fourth Proportional to 239,634, 359,688.96 and 127,315.08

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Solution

The fourth proportional to 239,634, 359,688.96 and 127,315.08 is: 191,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,634 : 359,688.96 = 127,315.08 : x
  2. Step 2: Convert to fraction form
    239,634/359,688.96 = 127,315.08/x
  3. Step 3: Cross multiply
    239,634x = 359,688.96 × 127,315.08
  4. Step 4: Simplify right side
    239,634x = 45,793,828,717.52
  5. Step 5: Solve for x
    x = 45,793,828,717.52/239,634
  6. Step 6: Final answer
    x = 191,099.05

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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.