Home / 420,255.84-579,954.42-229,273.23

Finding the Fourth Proportional to 420,255.84, 579,954.42 and 229,273.23

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Solution

The fourth proportional to 420,255.84, 579,954.42 and 229,273.23 is: 316,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,255.84 : 579,954.42 = 229,273.23 : x
  2. Step 2: Convert to fraction form
    420,255.84/579,954.42 = 229,273.23/x
  3. Step 3: Cross multiply
    420,255.84x = 579,954.42 × 229,273.23
  4. Step 4: Simplify right side
    420,255.84x = 132,968,023,126.18
  5. Step 5: Solve for x
    x = 132,968,023,126.18/420,255.84
  6. Step 6: Final answer
    x = 316,397.80

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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.