Home / 290,318.18-435,307.77-112,617.54

Finding the Fourth Proportional to 290,318.18, 435,307.77 and 112,617.54

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Solution

The fourth proportional to 290,318.18, 435,307.77 and 112,617.54 is: 168,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,318.18 : 435,307.77 = 112,617.54 : x
  2. Step 2: Convert to fraction form
    290,318.18/435,307.77 = 112,617.54/x
  3. Step 3: Cross multiply
    290,318.18x = 435,307.77 × 112,617.54
  4. Step 4: Simplify right side
    290,318.18x = 49,023,290,200.29
  5. Step 5: Solve for x
    x = 49,023,290,200.29/290,318.18
  6. Step 6: Final answer
    x = 168,860.56

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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.