Home / 375,121.16-517,657.05-213,972.81

Finding the Fourth Proportional to 375,121.16, 517,657.05 and 213,972.81

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Solution

The fourth proportional to 375,121.16, 517,657.05 and 213,972.81 is: 295,276.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,121.16 : 517,657.05 = 213,972.81 : x
  2. Step 2: Convert to fraction form
    375,121.16/517,657.05 = 213,972.81/x
  3. Step 3: Cross multiply
    375,121.16x = 517,657.05 × 213,972.81
  4. Step 4: Simplify right side
    375,121.16x = 110,764,533,604.81
  5. Step 5: Solve for x
    x = 110,764,533,604.81/375,121.16
  6. Step 6: Final answer
    x = 295,276.69

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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.