Home / 330,641.22-456,290.16-187,398.19

Finding the Fourth Proportional to 330,641.22, 456,290.16 and 187,398.19

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Solution

The fourth proportional to 330,641.22, 456,290.16 and 187,398.19 is: 258,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,641.22 : 456,290.16 = 187,398.19 : x
  2. Step 2: Convert to fraction form
    330,641.22/456,290.16 = 187,398.19/x
  3. Step 3: Cross multiply
    330,641.22x = 456,290.16 × 187,398.19
  4. Step 4: Simplify right side
    330,641.22x = 85,507,951,020.54
  5. Step 5: Solve for x
    x = 85,507,951,020.54/330,641.22
  6. Step 6: Final answer
    x = 258,612.49

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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.