Home / 278,799.84-384,742.98-151,474.32

Finding the Fourth Proportional to 278,799.84, 384,742.98 and 151,474.32

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Solution

The fourth proportional to 278,799.84, 384,742.98 and 151,474.32 is: 209,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,799.84 : 384,742.98 = 151,474.32 : x
  2. Step 2: Convert to fraction form
    278,799.84/384,742.98 = 151,474.32/x
  3. Step 3: Cross multiply
    278,799.84x = 384,742.98 × 151,474.32
  4. Step 4: Simplify right side
    278,799.84x = 58,278,681,270.27
  5. Step 5: Solve for x
    x = 58,278,681,270.27/278,799.84
  6. Step 6: Final answer
    x = 209,034.13

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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.