Home / 292,631.67-438,949.32-90,225.05

Finding the Fourth Proportional to 292,631.67, 438,949.32 and 90,225.05

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Solution

The fourth proportional to 292,631.67, 438,949.32 and 90,225.05 is: 135,338.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,631.67 : 438,949.32 = 90,225.05 : x
  2. Step 2: Convert to fraction form
    292,631.67/438,949.32 = 90,225.05/x
  3. Step 3: Cross multiply
    292,631.67x = 438,949.32 × 90,225.05
  4. Step 4: Simplify right side
    292,631.67x = 39,604,222,149.72
  5. Step 5: Solve for x
    x = 39,604,222,149.72/292,631.67
  6. Step 6: Final answer
    x = 135,338.13

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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.