Home / 279,410.64-385,595.10-172,042.62

Finding the Fourth Proportional to 279,410.64, 385,595.10 and 172,042.62

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Solution

The fourth proportional to 279,410.64, 385,595.10 and 172,042.62 is: 237,424.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,410.64 : 385,595.10 = 172,042.62 : x
  2. Step 2: Convert to fraction form
    279,410.64/385,595.10 = 172,042.62/x
  3. Step 3: Cross multiply
    279,410.64x = 385,595.10 × 172,042.62
  4. Step 4: Simplify right side
    279,410.64x = 66,338,791,263.16
  5. Step 5: Solve for x
    x = 66,338,791,263.16/279,410.64
  6. Step 6: Final answer
    x = 237,424.00

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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.