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Finding the Fourth Proportional to 290,339.42, 435,536.67 and 112,860.14

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Solution

The fourth proportional to 290,339.42, 435,536.67 and 112,860.14 is: 169,300.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,339.42 : 435,536.67 = 112,860.14 : x
  2. Step 2: Convert to fraction form
    290,339.42/435,536.67 = 112,860.14/x
  3. Step 3: Cross multiply
    290,339.42x = 435,536.67 × 112,860.14
  4. Step 4: Simplify right side
    290,339.42x = 49,154,729,551.33
  5. Step 5: Solve for x
    x = 49,154,729,551.33/290,339.42
  6. Step 6: Final answer
    x = 169,300.92

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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.