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Finding the Fourth Proportional to 207,528.72, 286,385.72 and 126,950.32

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Solution

The fourth proportional to 207,528.72, 286,385.72 and 126,950.32 is: 175,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,528.72 : 286,385.72 = 126,950.32 : x
  2. Step 2: Convert to fraction form
    207,528.72/286,385.72 = 126,950.32/x
  3. Step 3: Cross multiply
    207,528.72x = 286,385.72 × 126,950.32
  4. Step 4: Simplify right side
    207,528.72x = 36,356,758,797.43
  5. Step 5: Solve for x
    x = 36,356,758,797.43/207,528.72
  6. Step 6: Final answer
    x = 175,189.05

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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.