Home / 268,854.16-403,341.24-81,880.08

Finding the Fourth Proportional to 268,854.16, 403,341.24 and 81,880.08

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Solution

The fourth proportional to 268,854.16, 403,341.24 and 81,880.08 is: 122,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,854.16 : 403,341.24 = 81,880.08 : x
  2. Step 2: Convert to fraction form
    268,854.16/403,341.24 = 81,880.08/x
  3. Step 3: Cross multiply
    268,854.16x = 403,341.24 × 81,880.08
  4. Step 4: Simplify right side
    268,854.16x = 33,025,612,998.50
  5. Step 5: Solve for x
    x = 33,025,612,998.50/268,854.16
  6. Step 6: Final answer
    x = 122,838.39

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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.