Home / 371,407.07-512,543.85-218,451.68

Finding the Fourth Proportional to 371,407.07, 512,543.85 and 218,451.68

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Solution

The fourth proportional to 371,407.07, 512,543.85 and 218,451.68 is: 301,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,407.07 : 512,543.85 = 218,451.68 : x
  2. Step 2: Convert to fraction form
    371,407.07/512,543.85 = 218,451.68/x
  3. Step 3: Cross multiply
    371,407.07x = 512,543.85 × 218,451.68
  4. Step 4: Simplify right side
    371,407.07x = 111,966,067,758.14
  5. Step 5: Solve for x
    x = 111,966,067,758.14/371,407.07
  6. Step 6: Final answer
    x = 301,464.55

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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.