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Finding the Fourth Proportional to 203,482.23, 280,800.15 and 112,837.91

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Solution

The fourth proportional to 203,482.23, 280,800.15 and 112,837.91 is: 155,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,482.23 : 280,800.15 = 112,837.91 : x
  2. Step 2: Convert to fraction form
    203,482.23/280,800.15 = 112,837.91/x
  3. Step 3: Cross multiply
    203,482.23x = 280,800.15 × 112,837.91
  4. Step 4: Simplify right side
    203,482.23x = 31,684,900,649.69
  5. Step 5: Solve for x
    x = 31,684,900,649.69/203,482.23
  6. Step 6: Final answer
    x = 155,713.35

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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.