Home / 454,584.20-681,952.80-138,967.40

Finding the Fourth Proportional to 454,584.20, 681,952.80 and 138,967.40

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Solution

The fourth proportional to 454,584.20, 681,952.80 and 138,967.40 is: 208,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,584.20 : 681,952.80 = 138,967.40 : x
  2. Step 2: Convert to fraction form
    454,584.20/681,952.80 = 138,967.40/x
  3. Step 3: Cross multiply
    454,584.20x = 681,952.80 × 138,967.40
  4. Step 4: Simplify right side
    454,584.20x = 94,769,207,538.72
  5. Step 5: Solve for x
    x = 94,769,207,538.72/454,584.20
  6. Step 6: Final answer
    x = 208,474.49

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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.