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Finding the Fourth Proportional to 279,799.77, 386,123.76 and 152,475.39

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Solution

The fourth proportional to 279,799.77, 386,123.76 and 152,475.39 is: 210,416.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,799.77 : 386,123.76 = 152,475.39 : x
  2. Step 2: Convert to fraction form
    279,799.77/386,123.76 = 152,475.39/x
  3. Step 3: Cross multiply
    279,799.77x = 386,123.76 × 152,475.39
  4. Step 4: Simplify right side
    279,799.77x = 58,874,370,894.27
  5. Step 5: Solve for x
    x = 58,874,370,894.27/279,799.77
  6. Step 6: Final answer
    x = 210,416.08

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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.