Home / 278,114.56-417,204.20-100,705.12

Finding the Fourth Proportional to 278,114.56, 417,204.20 and 100,705.12

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Solution

The fourth proportional to 278,114.56, 417,204.20 and 100,705.12 is: 151,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,114.56 : 417,204.20 = 100,705.12 : x
  2. Step 2: Convert to fraction form
    278,114.56/417,204.20 = 100,705.12/x
  3. Step 3: Cross multiply
    278,114.56x = 417,204.20 × 100,705.12
  4. Step 4: Simplify right side
    278,114.56x = 42,014,599,025.50
  5. Step 5: Solve for x
    x = 42,014,599,025.50/278,114.56
  6. Step 6: Final answer
    x = 151,069.40

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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.