Home / 276,830.60-415,301.38-99,351.50

Finding the Fourth Proportional to 276,830.60, 415,301.38 and 99,351.50

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Solution

The fourth proportional to 276,830.60, 415,301.38 and 99,351.50 is: 149,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,830.60 : 415,301.38 = 99,351.50 : x
  2. Step 2: Convert to fraction form
    276,830.60/415,301.38 = 99,351.50/x
  3. Step 3: Cross multiply
    276,830.60x = 415,301.38 × 99,351.50
  4. Step 4: Simplify right side
    276,830.60x = 41,260,812,730.18
  5. Step 5: Solve for x
    x = 41,260,812,730.18/276,830.60
  6. Step 6: Final answer
    x = 149,047.16

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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.