Home / 278,628.30-417,971.61-173,360.70

Finding the Fourth Proportional to 278,628.30, 417,971.61 and 173,360.70

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Solution

The fourth proportional to 278,628.30, 417,971.61 and 173,360.70 is: 260,059.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,628.30 : 417,971.61 = 173,360.70 : x
  2. Step 2: Convert to fraction form
    278,628.30/417,971.61 = 173,360.70/x
  3. Step 3: Cross multiply
    278,628.30x = 417,971.61 × 173,360.70
  4. Step 4: Simplify right side
    278,628.30x = 72,459,850,889.73
  5. Step 5: Solve for x
    x = 72,459,850,889.73/278,628.30
  6. Step 6: Final answer
    x = 260,059.19

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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.