Home / 278,176.55-417,155.64-98,223.60

Finding the Fourth Proportional to 278,176.55, 417,155.64 and 98,223.60

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Solution

The fourth proportional to 278,176.55, 417,155.64 and 98,223.60 is: 147,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176.55 : 417,155.64 = 98,223.60 : x
  2. Step 2: Convert to fraction form
    278,176.55/417,155.64 = 98,223.60/x
  3. Step 3: Cross multiply
    278,176.55x = 417,155.64 × 98,223.60
  4. Step 4: Simplify right side
    278,176.55x = 40,974,528,721.10
  5. Step 5: Solve for x
    x = 40,974,528,721.10/278,176.55
  6. Step 6: Final answer
    x = 147,296.85

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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.