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Finding the Fourth Proportional to 207,511.53, 286,282.76 and 126,798.93

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Solution

The fourth proportional to 207,511.53, 286,282.76 and 126,798.93 is: 174,931.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,511.53 : 286,282.76 = 126,798.93 : x
  2. Step 2: Convert to fraction form
    207,511.53/286,282.76 = 126,798.93/x
  3. Step 3: Cross multiply
    207,511.53x = 286,282.76 × 126,798.93
  4. Step 4: Simplify right side
    207,511.53x = 36,300,347,645.45
  5. Step 5: Solve for x
    x = 36,300,347,645.45/207,511.53
  6. Step 6: Final answer
    x = 174,931.71

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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.