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Finding the Fourth Proportional to 276,789, 415,360.08 and 99,292.08

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Solution

The fourth proportional to 276,789, 415,360.08 and 99,292.08 is: 149,001.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,789 : 415,360.08 = 99,292.08 : x
  2. Step 2: Convert to fraction form
    276,789/415,360.08 = 99,292.08/x
  3. Step 3: Cross multiply
    276,789x = 415,360.08 × 99,292.08
  4. Step 4: Simplify right side
    276,789x = 41,241,966,292.17
  5. Step 5: Solve for x
    x = 41,241,966,292.17/276,789
  6. Step 6: Final answer
    x = 149,001.46

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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.