Home / 278,155.05-417,123.37-98,202.06

Finding the Fourth Proportional to 278,155.05, 417,123.37 and 98,202.06

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Solution

The fourth proportional to 278,155.05, 417,123.37 and 98,202.06 is: 147,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,155.05 : 417,123.37 = 98,202.06 : x
  2. Step 2: Convert to fraction form
    278,155.05/417,123.37 = 98,202.06/x
  3. Step 3: Cross multiply
    278,155.05x = 417,123.37 × 98,202.06
  4. Step 4: Simplify right side
    278,155.05x = 40,962,374,208.14
  5. Step 5: Solve for x
    x = 40,962,374,208.14/278,155.05
  6. Step 6: Final answer
    x = 147,264.54

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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.