Home / 513,221.93-769,783.58-158,140.61

Finding the Fourth Proportional to 513,221.93, 769,783.58 and 158,140.61

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Solution

The fourth proportional to 513,221.93, 769,783.58 and 158,140.61 is: 237,195.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,221.93 : 769,783.58 = 158,140.61 : x
  2. Step 2: Convert to fraction form
    513,221.93/769,783.58 = 158,140.61/x
  3. Step 3: Cross multiply
    513,221.93x = 769,783.58 × 158,140.61
  4. Step 4: Simplify right side
    513,221.93x = 121,734,044,909.18
  5. Step 5: Solve for x
    x = 121,734,044,909.18/513,221.93
  6. Step 6: Final answer
    x = 237,195.72

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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.