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Finding the Fourth Proportional to 276,006.10, 414,009.15 and 258,510.10

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Solution

The fourth proportional to 276,006.10, 414,009.15 and 258,510.10 is: 387,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,006.10 : 414,009.15 = 258,510.10 : x
  2. Step 2: Convert to fraction form
    276,006.10/414,009.15 = 258,510.10/x
  3. Step 3: Cross multiply
    276,006.10x = 414,009.15 × 258,510.10
  4. Step 4: Simplify right side
    276,006.10x = 107,025,546,767.42
  5. Step 5: Solve for x
    x = 107,025,546,767.42/276,006.10
  6. Step 6: Final answer
    x = 387,765.15

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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.