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Finding the Fourth Proportional to 207,305.69, 285,938.69 and 126,772.83

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Solution

The fourth proportional to 207,305.69, 285,938.69 and 126,772.83 is: 174,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,305.69 : 285,938.69 = 126,772.83 : x
  2. Step 2: Convert to fraction form
    207,305.69/285,938.69 = 126,772.83/x
  3. Step 3: Cross multiply
    207,305.69x = 285,938.69 × 126,772.83
  4. Step 4: Simplify right side
    207,305.69x = 36,249,256,303.93
  5. Step 5: Solve for x
    x = 36,249,256,303.93/207,305.69
  6. Step 6: Final answer
    x = 174,858.96

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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.