Home / 278,250.58-417,392.02-78,554.25

Finding the Fourth Proportional to 278,250.58, 417,392.02 and 78,554.25

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Solution

The fourth proportional to 278,250.58, 417,392.02 and 78,554.25 is: 117,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,250.58 : 417,392.02 = 78,554.25 : x
  2. Step 2: Convert to fraction form
    278,250.58/417,392.02 = 78,554.25/x
  3. Step 3: Cross multiply
    278,250.58x = 417,392.02 × 78,554.25
  4. Step 4: Simplify right side
    278,250.58x = 32,787,915,000.12
  5. Step 5: Solve for x
    x = 32,787,915,000.12/278,250.58
  6. Step 6: Final answer
    x = 117,835.93

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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.