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Finding the Fourth Proportional to 279,444.48, 385,635.76 and 152,119.76

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Solution

The fourth proportional to 279,444.48, 385,635.76 and 152,119.76 is: 209,926.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,444.48 : 385,635.76 = 152,119.76 : x
  2. Step 2: Convert to fraction form
    279,444.48/385,635.76 = 152,119.76/x
  3. Step 3: Cross multiply
    279,444.48x = 385,635.76 × 152,119.76
  4. Step 4: Simplify right side
    279,444.48x = 58,662,819,258.62
  5. Step 5: Solve for x
    x = 58,662,819,258.62/279,444.48
  6. Step 6: Final answer
    x = 209,926.56

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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.