Home / 399,280.32-551,055.36-229,514.40

Finding the Fourth Proportional to 399,280.32, 551,055.36 and 229,514.40

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Solution

The fourth proportional to 399,280.32, 551,055.36 and 229,514.40 is: 316,757.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,280.32 : 551,055.36 = 229,514.40 : x
  2. Step 2: Convert to fraction form
    399,280.32/551,055.36 = 229,514.40/x
  3. Step 3: Cross multiply
    399,280.32x = 551,055.36 × 229,514.40
  4. Step 4: Simplify right side
    399,280.32x = 126,475,140,317.18
  5. Step 5: Solve for x
    x = 126,475,140,317.18/399,280.32
  6. Step 6: Final answer
    x = 316,757.76

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1.5x scale

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.