Home / 251,066.32-378,326.56-207,669.76

Finding the Fourth Proportional to 251,066.32, 378,326.56 and 207,669.76

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Solution

The fourth proportional to 251,066.32, 378,326.56 and 207,669.76 is: 312,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,066.32 : 378,326.56 = 207,669.76 : x
  2. Step 2: Convert to fraction form
    251,066.32/378,326.56 = 207,669.76/x
  3. Step 3: Cross multiply
    251,066.32x = 378,326.56 × 207,669.76
  4. Step 4: Simplify right side
    251,066.32x = 78,566,985,916.83
  5. Step 5: Solve for x
    x = 78,566,985,916.83/251,066.32
  6. Step 6: Final answer
    x = 312,933.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.