Home / 268,263.72-402,295.02-78,684.84

Finding the Fourth Proportional to 268,263.72, 402,295.02 and 78,684.84

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Solution

The fourth proportional to 268,263.72, 402,295.02 and 78,684.84 is: 117,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,263.72 : 402,295.02 = 78,684.84 : x
  2. Step 2: Convert to fraction form
    268,263.72/402,295.02 = 78,684.84/x
  3. Step 3: Cross multiply
    268,263.72x = 402,295.02 × 78,684.84
  4. Step 4: Simplify right side
    268,263.72x = 31,654,519,281.50
  5. Step 5: Solve for x
    x = 31,654,519,281.50/268,263.72
  6. Step 6: Final answer
    x = 117,997.76

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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.