Home / 280,125.38-386,566.76-152,805.53

Finding the Fourth Proportional to 280,125.38, 386,566.76 and 152,805.53

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Solution

The fourth proportional to 280,125.38, 386,566.76 and 152,805.53 is: 210,868.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,125.38 : 386,566.76 = 152,805.53 : x
  2. Step 2: Convert to fraction form
    280,125.38/386,566.76 = 152,805.53/x
  3. Step 3: Cross multiply
    280,125.38x = 386,566.76 × 152,805.53
  4. Step 4: Simplify right side
    280,125.38x = 59,069,537,878.16
  5. Step 5: Solve for x
    x = 59,069,537,878.16/280,125.38
  6. Step 6: Final answer
    x = 210,868.21

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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.