Home / 278,928.88-418,292.08-152,662.40

Finding the Fourth Proportional to 278,928.88, 418,292.08 and 152,662.40

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Solution

The fourth proportional to 278,928.88, 418,292.08 and 152,662.40 is: 228,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,928.88 : 418,292.08 = 152,662.40 : x
  2. Step 2: Convert to fraction form
    278,928.88/418,292.08 = 152,662.40/x
  3. Step 3: Cross multiply
    278,928.88x = 418,292.08 × 152,662.40
  4. Step 4: Simplify right side
    278,928.88x = 63,857,472,833.79
  5. Step 5: Solve for x
    x = 63,857,472,833.79/278,928.88
  6. Step 6: Final answer
    x = 228,938.19

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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.