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Finding the Fourth Proportional to 185,612.58, 278,356.50 and 67,259.16

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Solution

The fourth proportional to 185,612.58, 278,356.50 and 67,259.16 is: 100,866.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,612.58 : 278,356.50 = 67,259.16 : x
  2. Step 2: Convert to fraction form
    185,612.58/278,356.50 = 67,259.16/x
  3. Step 3: Cross multiply
    185,612.58x = 278,356.50 × 67,259.16
  4. Step 4: Simplify right side
    185,612.58x = 18,722,024,370.54
  5. Step 5: Solve for x
    x = 18,722,024,370.54/185,612.58
  6. Step 6: Final answer
    x = 100,866.14

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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.