Home / 399,014.32-550,653.03-217,736.19

Finding the Fourth Proportional to 399,014.32, 550,653.03 and 217,736.19

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Solution

The fourth proportional to 399,014.32, 550,653.03 and 217,736.19 is: 300,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,014.32 : 550,653.03 = 217,736.19 : x
  2. Step 2: Convert to fraction form
    399,014.32/550,653.03 = 217,736.19/x
  3. Step 3: Cross multiply
    399,014.32x = 550,653.03 × 217,736.19
  4. Step 4: Simplify right side
    399,014.32x = 119,897,092,764.16
  5. Step 5: Solve for x
    x = 119,897,092,764.16/399,014.32
  6. Step 6: Final answer
    x = 300,483.18

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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.