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Finding the Fourth Proportional to 279,125.42, 385,177.29 and 151,800.98

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Solution

The fourth proportional to 279,125.42, 385,177.29 and 151,800.98 is: 209,476.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,125.42 : 385,177.29 = 151,800.98 : x
  2. Step 2: Convert to fraction form
    279,125.42/385,177.29 = 151,800.98/x
  3. Step 3: Cross multiply
    279,125.42x = 385,177.29 × 151,800.98
  4. Step 4: Simplify right side
    279,125.42x = 58,470,290,095.74
  5. Step 5: Solve for x
    x = 58,470,290,095.74/279,125.42
  6. Step 6: Final answer
    x = 209,476.77

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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.