Home / 268,876.10-403,314.15-257,066.30

Finding the Fourth Proportional to 268,876.10, 403,314.15 and 257,066.30

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Solution

The fourth proportional to 268,876.10, 403,314.15 and 257,066.30 is: 385,599.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,876.10 : 403,314.15 = 257,066.30 : x
  2. Step 2: Convert to fraction form
    268,876.10/403,314.15 = 257,066.30/x
  3. Step 3: Cross multiply
    268,876.10x = 403,314.15 × 257,066.30
  4. Step 4: Simplify right side
    268,876.10x = 103,678,476,278.15
  5. Step 5: Solve for x
    x = 103,678,476,278.15/268,876.10
  6. Step 6: Final answer
    x = 385,599.45

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1.5x scale

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.