Home / 345,079.16-517,442.58-157,930.20

Finding the Fourth Proportional to 345,079.16, 517,442.58 and 157,930.20

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Solution

The fourth proportional to 345,079.16, 517,442.58 and 157,930.20 is: 236,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,079.16 : 517,442.58 = 157,930.20 : x
  2. Step 2: Convert to fraction form
    345,079.16/517,442.58 = 157,930.20/x
  3. Step 3: Cross multiply
    345,079.16x = 517,442.58 × 157,930.20
  4. Step 4: Simplify right side
    345,079.16x = 81,719,810,147.92
  5. Step 5: Solve for x
    x = 81,719,810,147.92/345,079.16
  6. Step 6: Final answer
    x = 236,814.68

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1.5x scale

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.