Home / 349,155.32-523,766.82-138,746.12

Finding the Fourth Proportional to 349,155.32, 523,766.82 and 138,746.12

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Solution

The fourth proportional to 349,155.32, 523,766.82 and 138,746.12 is: 208,132.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,155.32 : 523,766.82 = 138,746.12 : x
  2. Step 2: Convert to fraction form
    349,155.32/523,766.82 = 138,746.12/x
  3. Step 3: Cross multiply
    349,155.32x = 523,766.82 × 138,746.12
  4. Step 4: Simplify right side
    349,155.32x = 72,670,614,059.74
  5. Step 5: Solve for x
    x = 72,670,614,059.74/349,155.32
  6. Step 6: Final answer
    x = 208,132.63

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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.