Home / 283,330.50-390,998.68-156,010.65

Finding the Fourth Proportional to 283,330.50, 390,998.68 and 156,010.65

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Solution

The fourth proportional to 283,330.50, 390,998.68 and 156,010.65 is: 215,296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,330.50 : 390,998.68 = 156,010.65 : x
  2. Step 2: Convert to fraction form
    283,330.50/390,998.68 = 156,010.65/x
  3. Step 3: Cross multiply
    283,330.50x = 390,998.68 × 156,010.65
  4. Step 4: Simplify right side
    283,330.50x = 60,999,956,359.67
  5. Step 5: Solve for x
    x = 60,999,956,359.67/283,330.50
  6. Step 6: Final answer
    x = 215,296.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.