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Finding the Fourth Proportional to 276,345.60, 414,275.40 and 187,310.40

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Solution

The fourth proportional to 276,345.60, 414,275.40 and 187,310.40 is: 280,800.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,345.60 : 414,275.40 = 187,310.40 : x
  2. Step 2: Convert to fraction form
    276,345.60/414,275.40 = 187,310.40/x
  3. Step 3: Cross multiply
    276,345.60x = 414,275.40 × 187,310.40
  4. Step 4: Simplify right side
    276,345.60x = 77,598,090,884.16
  5. Step 5: Solve for x
    x = 77,598,090,884.16/276,345.60
  6. Step 6: Final answer
    x = 280,800.89

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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.