Home / 278,323.10-417,460.35-91,334.60

Finding the Fourth Proportional to 278,323.10, 417,460.35 and 91,334.60

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Solution

The fourth proportional to 278,323.10, 417,460.35 and 91,334.60 is: 136,993.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,323.10 : 417,460.35 = 91,334.60 : x
  2. Step 2: Convert to fraction form
    278,323.10/417,460.35 = 91,334.60/x
  3. Step 3: Cross multiply
    278,323.10x = 417,460.35 × 91,334.60
  4. Step 4: Simplify right side
    278,323.10x = 38,128,574,083.11
  5. Step 5: Solve for x
    x = 38,128,574,083.11/278,323.10
  6. Step 6: Final answer
    x = 136,993.93

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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.