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Finding the Fourth Proportional to 291,661.29, 437,648.78 and 281,045.34

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Solution

The fourth proportional to 291,661.29, 437,648.78 and 281,045.34 is: 421,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,661.29 : 437,648.78 = 281,045.34 : x
  2. Step 2: Convert to fraction form
    291,661.29/437,648.78 = 281,045.34/x
  3. Step 3: Cross multiply
    291,661.29x = 437,648.78 × 281,045.34
  4. Step 4: Simplify right side
    291,661.29x = 122,999,148,770.46
  5. Step 5: Solve for x
    x = 122,999,148,770.46/291,661.29
  6. Step 6: Final answer
    x = 421,719.14

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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.