Home / 426,372.65-639,345.02-141,963.02

Finding the Fourth Proportional to 426,372.65, 639,345.02 and 141,963.02

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Solution

The fourth proportional to 426,372.65, 639,345.02 and 141,963.02 is: 212,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,372.65 : 639,345.02 = 141,963.02 : x
  2. Step 2: Convert to fraction form
    426,372.65/639,345.02 = 141,963.02/x
  3. Step 3: Cross multiply
    426,372.65x = 639,345.02 × 141,963.02
  4. Step 4: Simplify right side
    426,372.65x = 90,763,345,954.62
  5. Step 5: Solve for x
    x = 90,763,345,954.62/426,372.65
  6. Step 6: Final answer
    x = 212,873.29

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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.