Home / 278,440.13-417,667.41-88,900.34

Finding the Fourth Proportional to 278,440.13, 417,667.41 and 88,900.34

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Solution

The fourth proportional to 278,440.13, 417,667.41 and 88,900.34 is: 133,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,440.13 : 417,667.41 = 88,900.34 : x
  2. Step 2: Convert to fraction form
    278,440.13/417,667.41 = 88,900.34/x
  3. Step 3: Cross multiply
    278,440.13x = 417,667.41 × 88,900.34
  4. Step 4: Simplify right side
    278,440.13x = 37,130,772,667.58
  5. Step 5: Solve for x
    x = 37,130,772,667.58/278,440.13
  6. Step 6: Final answer
    x = 133,352.80

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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.