Home / 257,084.28-385,551.90-99,276.84

Finding the Fourth Proportional to 257,084.28, 385,551.90 and 99,276.84

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Solution

The fourth proportional to 257,084.28, 385,551.90 and 99,276.84 is: 148,886.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,084.28 : 385,551.90 = 99,276.84 : x
  2. Step 2: Convert to fraction form
    257,084.28/385,551.90 = 99,276.84/x
  3. Step 3: Cross multiply
    257,084.28x = 385,551.90 × 99,276.84
  4. Step 4: Simplify right side
    257,084.28x = 38,276,374,288.00
  5. Step 5: Solve for x
    x = 38,276,374,288.00/257,084.28
  6. Step 6: Final answer
    x = 148,886.48

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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.