Home / 345,862.78-477,397.20-202,669.36

Finding the Fourth Proportional to 345,862.78, 477,397.20 and 202,669.36

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Solution

The fourth proportional to 345,862.78, 477,397.20 and 202,669.36 is: 279,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,862.78 : 477,397.20 = 202,669.36 : x
  2. Step 2: Convert to fraction form
    345,862.78/477,397.20 = 202,669.36/x
  3. Step 3: Cross multiply
    345,862.78x = 477,397.20 × 202,669.36
  4. Step 4: Simplify right side
    345,862.78x = 96,753,784,989.79
  5. Step 5: Solve for x
    x = 96,753,784,989.79/345,862.78
  6. Step 6: Final answer
    x = 279,746.16

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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.