Home / 399,554.08-551,401.36-229,788.32

Finding the Fourth Proportional to 399,554.08, 551,401.36 and 229,788.32

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Solution

The fourth proportional to 399,554.08, 551,401.36 and 229,788.32 is: 317,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,554.08 : 551,401.36 = 229,788.32 : x
  2. Step 2: Convert to fraction form
    399,554.08/551,401.36 = 229,788.32/x
  3. Step 3: Cross multiply
    399,554.08x = 551,401.36 × 229,788.32
  4. Step 4: Simplify right side
    399,554.08x = 126,705,592,160.12
  5. Step 5: Solve for x
    x = 126,705,592,160.12/399,554.08
  6. Step 6: Final answer
    x = 317,117.50

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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.