Home / 278,324.60-417,584.10-100,837.40

Finding the Fourth Proportional to 278,324.60, 417,584.10 and 100,837.40

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Solution

The fourth proportional to 278,324.60, 417,584.10 and 100,837.40 is: 151,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,324.60 : 417,584.10 = 100,837.40 : x
  2. Step 2: Convert to fraction form
    278,324.60/417,584.10 = 100,837.40/x
  3. Step 3: Cross multiply
    278,324.60x = 417,584.10 × 100,837.40
  4. Step 4: Simplify right side
    278,324.60x = 42,108,094,925.34
  5. Step 5: Solve for x
    x = 42,108,094,925.34/278,324.60
  6. Step 6: Final answer
    x = 151,291.32

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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.