Home / 475,971.12-656,857.20-261,117.50

Finding the Fourth Proportional to 475,971.12, 656,857.20 and 261,117.50

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Solution

The fourth proportional to 475,971.12, 656,857.20 and 261,117.50 is: 360,351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,971.12 : 656,857.20 = 261,117.50 : x
  2. Step 2: Convert to fraction form
    475,971.12/656,857.20 = 261,117.50/x
  3. Step 3: Cross multiply
    475,971.12x = 656,857.20 × 261,117.50
  4. Step 4: Simplify right side
    475,971.12x = 171,516,909,921
  5. Step 5: Solve for x
    x = 171,516,909,921/475,971.12
  6. Step 6: Final answer
    x = 360,351.51

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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.