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Finding the Fourth Proportional to 253,132.88, 349,330.68 and 139,962.92

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Solution

The fourth proportional to 253,132.88, 349,330.68 and 139,962.92 is: 193,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,132.88 : 349,330.68 = 139,962.92 : x
  2. Step 2: Convert to fraction form
    253,132.88/349,330.68 = 139,962.92/x
  3. Step 3: Cross multiply
    253,132.88x = 349,330.68 × 139,962.92
  4. Step 4: Simplify right side
    253,132.88x = 48,893,340,271.73
  5. Step 5: Solve for x
    x = 48,893,340,271.73/253,132.88
  6. Step 6: Final answer
    x = 193,152.87

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1.5x scale

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.