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Finding the Fourth Proportional to 486,186.83, 670,948.57 and 268,395

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Solution

The fourth proportional to 486,186.83, 670,948.57 and 268,395 is: 370,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,186.83 : 670,948.57 = 268,395 : x
  2. Step 2: Convert to fraction form
    486,186.83/670,948.57 = 268,395/x
  3. Step 3: Cross multiply
    486,186.83x = 670,948.57 × 268,395
  4. Step 4: Simplify right side
    486,186.83x = 180,079,241,445.15
  5. Step 5: Solve for x
    x = 180,079,241,445.15/486,186.83
  6. Step 6: Final answer
    x = 370,391.03

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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.