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Finding the Fourth Proportional to 290,324.93, 435,317.90 and 112,624.29

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Solution

The fourth proportional to 290,324.93, 435,317.90 and 112,624.29 is: 168,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,324.93 : 435,317.90 = 112,624.29 : x
  2. Step 2: Convert to fraction form
    290,324.93/435,317.90 = 112,624.29/x
  3. Step 3: Cross multiply
    290,324.93x = 435,317.90 × 112,624.29
  4. Step 4: Simplify right side
    290,324.93x = 49,027,368,848.67
  5. Step 5: Solve for x
    x = 49,027,368,848.67/290,324.93
  6. Step 6: Final answer
    x = 168,870.68

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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.