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Finding the Fourth Proportional to 255,347.57, 382,959.83 and 113,114.21

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Solution

The fourth proportional to 255,347.57, 382,959.83 and 113,114.21 is: 169,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,347.57 : 382,959.83 = 113,114.21 : x
  2. Step 2: Convert to fraction form
    255,347.57/382,959.83 = 113,114.21/x
  3. Step 3: Cross multiply
    255,347.57x = 382,959.83 × 113,114.21
  4. Step 4: Simplify right side
    255,347.57x = 43,318,197,000.17
  5. Step 5: Solve for x
    x = 43,318,197,000.17/255,347.57
  6. Step 6: Final answer
    x = 169,644.05

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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.