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Finding the Fourth Proportional to 207,703.36, 286,630.14 and 112,209.76

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Solution

The fourth proportional to 207,703.36, 286,630.14 and 112,209.76 is: 154,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,703.36 : 286,630.14 = 112,209.76 : x
  2. Step 2: Convert to fraction form
    207,703.36/286,630.14 = 112,209.76/x
  3. Step 3: Cross multiply
    207,703.36x = 286,630.14 × 112,209.76
  4. Step 4: Simplify right side
    207,703.36x = 32,162,699,218.17
  5. Step 5: Solve for x
    x = 32,162,699,218.17/207,703.36
  6. Step 6: Final answer
    x = 154,849.20

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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.