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Finding the Fourth Proportional to 276,618.60, 414,927.90 and 239,220.90

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Solution

The fourth proportional to 276,618.60, 414,927.90 and 239,220.90 is: 358,831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,618.60 : 414,927.90 = 239,220.90 : x
  2. Step 2: Convert to fraction form
    276,618.60/414,927.90 = 239,220.90/x
  3. Step 3: Cross multiply
    276,618.60x = 414,927.90 × 239,220.90
  4. Step 4: Simplify right side
    276,618.60x = 99,259,425,673.11
  5. Step 5: Solve for x
    x = 99,259,425,673.11/276,618.60
  6. Step 6: Final answer
    x = 358,831.35

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Similar ratio
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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.