Home / 268,247.55-402,433.61-78,700.26

Finding the Fourth Proportional to 268,247.55, 402,433.61 and 78,700.26

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Solution

The fourth proportional to 268,247.55, 402,433.61 and 78,700.26 is: 118,068.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,247.55 : 402,433.61 = 78,700.26 : x
  2. Step 2: Convert to fraction form
    268,247.55/402,433.61 = 78,700.26/x
  3. Step 3: Cross multiply
    268,247.55x = 402,433.61 × 78,700.26
  4. Step 4: Simplify right side
    268,247.55x = 31,671,629,346.24
  5. Step 5: Solve for x
    x = 31,671,629,346.24/268,247.55
  6. Step 6: Final answer
    x = 118,068.66

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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.