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Finding the Fourth Proportional to 291,469.48, 437,089.58 and 141,665.88

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Solution

The fourth proportional to 291,469.48, 437,089.58 and 141,665.88 is: 212,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,469.48 : 437,089.58 = 141,665.88 : x
  2. Step 2: Convert to fraction form
    291,469.48/437,089.58 = 141,665.88/x
  3. Step 3: Cross multiply
    291,469.48x = 437,089.58 × 141,665.88
  4. Step 4: Simplify right side
    291,469.48x = 61,920,679,989.53
  5. Step 5: Solve for x
    x = 61,920,679,989.53/291,469.48
  6. Step 6: Final answer
    x = 212,443.10

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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.