Home / 239,740.18-359,499.03-139,929.10

Finding the Fourth Proportional to 239,740.18, 359,499.03 and 139,929.10

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Solution

The fourth proportional to 239,740.18, 359,499.03 and 139,929.10 is: 209,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,740.18 : 359,499.03 = 139,929.10 : x
  2. Step 2: Convert to fraction form
    239,740.18/359,499.03 = 139,929.10/x
  3. Step 3: Cross multiply
    239,740.18x = 359,499.03 × 139,929.10
  4. Step 4: Simplify right side
    239,740.18x = 50,304,375,718.77
  5. Step 5: Solve for x
    x = 50,304,375,718.77/239,740.18
  6. Step 6: Final answer
    x = 209,828.72

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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.