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Finding the Fourth Proportional to 207,488.58, 286,230.81 and 126,775.45

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Solution

The fourth proportional to 207,488.58, 286,230.81 and 126,775.45 is: 174,886.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,488.58 : 286,230.81 = 126,775.45 : x
  2. Step 2: Convert to fraction form
    207,488.58/286,230.81 = 126,775.45/x
  3. Step 3: Cross multiply
    207,488.58x = 286,230.81 × 126,775.45
  4. Step 4: Simplify right side
    207,488.58x = 36,287,039,741.61
  5. Step 5: Solve for x
    x = 36,287,039,741.61/207,488.58
  6. Step 6: Final answer
    x = 174,886.93

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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.