Home / 280,841.55-387,561.35-153,517.15

Finding the Fourth Proportional to 280,841.55, 387,561.35 and 153,517.15

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Solution

The fourth proportional to 280,841.55, 387,561.35 and 153,517.15 is: 211,853.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,841.55 : 387,561.35 = 153,517.15 : x
  2. Step 2: Convert to fraction form
    280,841.55/387,561.35 = 153,517.15/x
  3. Step 3: Cross multiply
    280,841.55x = 387,561.35 × 153,517.15
  4. Step 4: Simplify right side
    280,841.55x = 59,497,312,600.96
  5. Step 5: Solve for x
    x = 59,497,312,600.96/280,841.55
  6. Step 6: Final answer
    x = 211,853.66

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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.