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Finding the Fourth Proportional to 290,274.21, 435,577.14 and 112,758.12

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Solution

The fourth proportional to 290,274.21, 435,577.14 and 112,758.12 is: 169,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,274.21 : 435,577.14 = 112,758.12 : x
  2. Step 2: Convert to fraction form
    290,274.21/435,577.14 = 112,758.12/x
  3. Step 3: Cross multiply
    290,274.21x = 435,577.14 × 112,758.12
  4. Step 4: Simplify right side
    290,274.21x = 49,114,859,421.38
  5. Step 5: Solve for x
    x = 49,114,859,421.38/290,274.21
  6. Step 6: Final answer
    x = 169,201.60

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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.