Home / 638,140.86-957,583.38-239,061.96

Finding the Fourth Proportional to 638,140.86, 957,583.38 and 239,061.96

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Solution

The fourth proportional to 638,140.86, 957,583.38 and 239,061.96 is: 358,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,140.86 : 957,583.38 = 239,061.96 : x
  2. Step 2: Convert to fraction form
    638,140.86/957,583.38 = 239,061.96/x
  3. Step 3: Cross multiply
    638,140.86x = 957,583.38 × 239,061.96
  4. Step 4: Simplify right side
    638,140.86x = 228,921,759,686.23
  5. Step 5: Solve for x
    x = 228,921,759,686.23/638,140.86
  6. Step 6: Final answer
    x = 358,732.33

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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.