Home / 278,830.20-417,783.60-160,294.80

Finding the Fourth Proportional to 278,830.20, 417,783.60 and 160,294.80

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Solution

The fourth proportional to 278,830.20, 417,783.60 and 160,294.80 is: 240,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,830.20 : 417,783.60 = 160,294.80 : x
  2. Step 2: Convert to fraction form
    278,830.20/417,783.60 = 160,294.80/x
  3. Step 3: Cross multiply
    278,830.20x = 417,783.60 × 160,294.80
  4. Step 4: Simplify right side
    278,830.20x = 66,968,538,605.28
  5. Step 5: Solve for x
    x = 66,968,538,605.28/278,830.20
  6. Step 6: Final answer
    x = 240,176.78

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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.