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Finding the Fourth Proportional to 518,085.13, 777,171.70 and 144,108.13

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Solution

The fourth proportional to 518,085.13, 777,171.70 and 144,108.13 is: 216,174.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,085.13 : 777,171.70 = 144,108.13 : x
  2. Step 2: Convert to fraction form
    518,085.13/777,171.70 = 144,108.13/x
  3. Step 3: Cross multiply
    518,085.13x = 777,171.70 × 144,108.13
  4. Step 4: Simplify right side
    518,085.13x = 111,996,760,375.92
  5. Step 5: Solve for x
    x = 111,996,760,375.92/518,085.13
  6. Step 6: Final answer
    x = 216,174.44

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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.