Home / 386,278.64-579,083.12-149,458.40

Finding the Fourth Proportional to 386,278.64, 579,083.12 and 149,458.40

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Solution

The fourth proportional to 386,278.64, 579,083.12 and 149,458.40 is: 224,058.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,278.64 : 579,083.12 = 149,458.40 : x
  2. Step 2: Convert to fraction form
    386,278.64/579,083.12 = 149,458.40/x
  3. Step 3: Cross multiply
    386,278.64x = 579,083.12 × 149,458.40
  4. Step 4: Simplify right side
    386,278.64x = 86,548,836,582.21
  5. Step 5: Solve for x
    x = 86,548,836,582.21/386,278.64
  6. Step 6: Final answer
    x = 224,058.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.