Home / 420,348.16-580,093.25-239,086.18

Finding the Fourth Proportional to 420,348.16, 580,093.25 and 239,086.18

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Solution

The fourth proportional to 420,348.16, 580,093.25 and 239,086.18 is: 329,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,348.16 : 580,093.25 = 239,086.18 : x
  2. Step 2: Convert to fraction form
    420,348.16/580,093.25 = 239,086.18/x
  3. Step 3: Cross multiply
    420,348.16x = 580,093.25 × 239,086.18
  4. Step 4: Simplify right side
    420,348.16x = 138,692,279,186.29
  5. Step 5: Solve for x
    x = 138,692,279,186.29/420,348.16
  6. Step 6: Final answer
    x = 329,946.20

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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.