Home / 317,809.20-438,590.48-181,885.80

Finding the Fourth Proportional to 317,809.20, 438,590.48 and 181,885.80

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Solution

The fourth proportional to 317,809.20, 438,590.48 and 181,885.80 is: 251,010.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,809.20 : 438,590.48 = 181,885.80 : x
  2. Step 2: Convert to fraction form
    317,809.20/438,590.48 = 181,885.80/x
  3. Step 3: Cross multiply
    317,809.20x = 438,590.48 × 181,885.80
  4. Step 4: Simplify right side
    317,809.20x = 79,773,380,327.18
  5. Step 5: Solve for x
    x = 79,773,380,327.18/317,809.20
  6. Step 6: Final answer
    x = 251,010.29

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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.