Home / 292,621.85-438,974.59-90,235.05

Finding the Fourth Proportional to 292,621.85, 438,974.59 and 90,235.05

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Solution

The fourth proportional to 292,621.85, 438,974.59 and 90,235.05 is: 135,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,621.85 : 438,974.59 = 90,235.05 : x
  2. Step 2: Convert to fraction form
    292,621.85/438,974.59 = 90,235.05/x
  3. Step 3: Cross multiply
    292,621.85x = 438,974.59 × 90,235.05
  4. Step 4: Simplify right side
    292,621.85x = 39,610,894,077.38
  5. Step 5: Solve for x
    x = 39,610,894,077.38/292,621.85
  6. Step 6: Final answer
    x = 135,365.47

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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.