Home / 272,612.20-408,918.30-188,631.40

Finding the Fourth Proportional to 272,612.20, 408,918.30 and 188,631.40

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Solution

The fourth proportional to 272,612.20, 408,918.30 and 188,631.40 is: 282,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,612.20 : 408,918.30 = 188,631.40 : x
  2. Step 2: Convert to fraction form
    272,612.20/408,918.30 = 188,631.40/x
  3. Step 3: Cross multiply
    272,612.20x = 408,918.30 × 188,631.40
  4. Step 4: Simplify right side
    272,612.20x = 77,134,831,414.62
  5. Step 5: Solve for x
    x = 77,134,831,414.62/272,612.20
  6. Step 6: Final answer
    x = 282,947.10

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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.