Home / 278,139.10-417,208.65-248,614.60

Finding the Fourth Proportional to 278,139.10, 417,208.65 and 248,614.60

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Solution

The fourth proportional to 278,139.10, 417,208.65 and 248,614.60 is: 372,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,139.10 : 417,208.65 = 248,614.60 : x
  2. Step 2: Convert to fraction form
    278,139.10/417,208.65 = 248,614.60/x
  3. Step 3: Cross multiply
    278,139.10x = 417,208.65 × 248,614.60
  4. Step 4: Simplify right side
    278,139.10x = 103,724,161,636.29
  5. Step 5: Solve for x
    x = 103,724,161,636.29/278,139.10
  6. Step 6: Final answer
    x = 372,921.90

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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.