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Finding the Fourth Proportional to 239,425.70, 358,896.15 and 155,239.16

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Solution

The fourth proportional to 239,425.70, 358,896.15 and 155,239.16 is: 232,701.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,425.70 : 358,896.15 = 155,239.16 : x
  2. Step 2: Convert to fraction form
    239,425.70/358,896.15 = 155,239.16/x
  3. Step 3: Cross multiply
    239,425.70x = 358,896.15 × 155,239.16
  4. Step 4: Simplify right side
    239,425.70x = 55,714,735,058.75
  5. Step 5: Solve for x
    x = 55,714,735,058.75/239,425.70
  6. Step 6: Final answer
    x = 232,701.57

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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.