Home / 347,078.18-520,515.14-157,428.83

Finding the Fourth Proportional to 347,078.18, 520,515.14 and 157,428.83

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Solution

The fourth proportional to 347,078.18, 520,515.14 and 157,428.83 is: 236,096.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,078.18 : 520,515.14 = 157,428.83 : x
  2. Step 2: Convert to fraction form
    347,078.18/520,515.14 = 157,428.83/x
  3. Step 3: Cross multiply
    347,078.18x = 520,515.14 × 157,428.83
  4. Step 4: Simplify right side
    347,078.18x = 81,944,086,097.77
  5. Step 5: Solve for x
    x = 81,944,086,097.77/347,078.18
  6. Step 6: Final answer
    x = 236,096.91

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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.