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Finding the Fourth Proportional to 259,965.76, 389,948.64 and 93,753.76

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Solution

The fourth proportional to 259,965.76, 389,948.64 and 93,753.76 is: 140,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,965.76 : 389,948.64 = 93,753.76 : x
  2. Step 2: Convert to fraction form
    259,965.76/389,948.64 = 93,753.76/x
  3. Step 3: Cross multiply
    259,965.76x = 389,948.64 × 93,753.76
  4. Step 4: Simplify right side
    259,965.76x = 36,559,151,206.89
  5. Step 5: Solve for x
    x = 36,559,151,206.89/259,965.76
  6. Step 6: Final answer
    x = 140,630.64

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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.