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Finding the Fourth Proportional to 486,146.77, 670,882.56 and 268,355.50

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Solution

The fourth proportional to 486,146.77, 670,882.56 and 268,355.50 is: 370,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,146.77 : 670,882.56 = 268,355.50 : x
  2. Step 2: Convert to fraction form
    486,146.77/670,882.56 = 268,355.50/x
  3. Step 3: Cross multiply
    486,146.77x = 670,882.56 × 268,355.50
  4. Step 4: Simplify right side
    486,146.77x = 180,035,024,830.08
  5. Step 5: Solve for x
    x = 180,035,024,830.08/486,146.77
  6. Step 6: Final answer
    x = 370,330.60

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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.