Home / 268,181.02-402,290.73-81,207.10

Finding the Fourth Proportional to 268,181.02, 402,290.73 and 81,207.10

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Solution

The fourth proportional to 268,181.02, 402,290.73 and 81,207.10 is: 121,816.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,181.02 : 402,290.73 = 81,207.10 : x
  2. Step 2: Convert to fraction form
    268,181.02/402,290.73 = 81,207.10/x
  3. Step 3: Cross multiply
    268,181.02x = 402,290.73 × 81,207.10
  4. Step 4: Simplify right side
    268,181.02x = 32,668,863,540.18
  5. Step 5: Solve for x
    x = 32,668,863,540.18/268,181.02
  6. Step 6: Final answer
    x = 121,816.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.