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Finding the Fourth Proportional to 207,992.76, 287,030.82 and 112,500.12

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Solution

The fourth proportional to 207,992.76, 287,030.82 and 112,500.12 is: 155,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,992.76 : 287,030.82 = 112,500.12 : x
  2. Step 2: Convert to fraction form
    207,992.76/287,030.82 = 112,500.12/x
  3. Step 3: Cross multiply
    207,992.76x = 287,030.82 × 112,500.12
  4. Step 4: Simplify right side
    207,992.76x = 32,291,001,693.70
  5. Step 5: Solve for x
    x = 32,291,001,693.70/207,992.76
  6. Step 6: Final answer
    x = 155,250.60

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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.