Home / 186,876.40-280,314.60-172,442.20

Finding the Fourth Proportional to 186,876.40, 280,314.60 and 172,442.20

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Solution

The fourth proportional to 186,876.40, 280,314.60 and 172,442.20 is: 258,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,876.40 : 280,314.60 = 172,442.20 : x
  2. Step 2: Convert to fraction form
    186,876.40/280,314.60 = 172,442.20/x
  3. Step 3: Cross multiply
    186,876.40x = 280,314.60 × 172,442.20
  4. Step 4: Simplify right side
    186,876.40x = 48,338,066,316.12
  5. Step 5: Solve for x
    x = 48,338,066,316.12/186,876.40
  6. Step 6: Final answer
    x = 258,663.30

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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.