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Finding the Fourth Proportional to 202,242.60, 279,150.30 and 117,387

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Solution

The fourth proportional to 202,242.60, 279,150.30 and 117,387 is: 162,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,242.60 : 279,150.30 = 117,387 : x
  2. Step 2: Convert to fraction form
    202,242.60/279,150.30 = 117,387/x
  3. Step 3: Cross multiply
    202,242.60x = 279,150.30 × 117,387
  4. Step 4: Simplify right side
    202,242.60x = 32,768,616,266.10
  5. Step 5: Solve for x
    x = 32,768,616,266.10/202,242.60
  6. Step 6: Final answer
    x = 162,026.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.