Home / 268,182.02-402,292.23-81,208.10

Finding the Fourth Proportional to 268,182.02, 402,292.23 and 81,208.10

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Solution

The fourth proportional to 268,182.02, 402,292.23 and 81,208.10 is: 121,817.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,182.02 : 402,292.23 = 81,208.10 : x
  2. Step 2: Convert to fraction form
    268,182.02/402,292.23 = 81,208.10/x
  3. Step 3: Cross multiply
    268,182.02x = 402,292.23 × 81,208.10
  4. Step 4: Simplify right side
    268,182.02x = 32,669,387,643.06
  5. Step 5: Solve for x
    x = 32,669,387,643.06/268,182.02
  6. Step 6: Final answer
    x = 121,817.96

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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.