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Finding the Fourth Proportional to 203,146.65, 280,343.16 and 112,500.63

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Solution

The fourth proportional to 203,146.65, 280,343.16 and 112,500.63 is: 155,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,146.65 : 280,343.16 = 112,500.63 : x
  2. Step 2: Convert to fraction form
    203,146.65/280,343.16 = 112,500.63/x
  3. Step 3: Cross multiply
    203,146.65x = 280,343.16 × 112,500.63
  4. Step 4: Simplify right side
    203,146.65x = 31,538,782,116.19
  5. Step 5: Solve for x
    x = 31,538,782,116.19/203,146.65
  6. Step 6: Final answer
    x = 155,251.30

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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.