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Finding the Fourth Proportional to 291,750.84, 437,700.06 and 81,388.62

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Solution

The fourth proportional to 291,750.84, 437,700.06 and 81,388.62 is: 122,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,750.84 : 437,700.06 = 81,388.62 : x
  2. Step 2: Convert to fraction form
    291,750.84/437,700.06 = 81,388.62/x
  3. Step 3: Cross multiply
    291,750.84x = 437,700.06 × 81,388.62
  4. Step 4: Simplify right side
    291,750.84x = 35,623,803,857.32
  5. Step 5: Solve for x
    x = 35,623,803,857.32/291,750.84
  6. Step 6: Final answer
    x = 122,103.52

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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.