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Finding the Fourth Proportional to 357,525.64, 536,287.96 and 91,286.20

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Solution

The fourth proportional to 357,525.64, 536,287.96 and 91,286.20 is: 136,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,525.64 : 536,287.96 = 91,286.20 : x
  2. Step 2: Convert to fraction form
    357,525.64/536,287.96 = 91,286.20/x
  3. Step 3: Cross multiply
    357,525.64x = 536,287.96 × 91,286.20
  4. Step 4: Simplify right side
    357,525.64x = 48,955,689,974.15
  5. Step 5: Solve for x
    x = 48,955,689,974.15/357,525.64
  6. Step 6: Final answer
    x = 136,929.17

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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.