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Finding the Fourth Proportional to 212,607.99, 319,108.82 and 107,500.77

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Solution

The fourth proportional to 212,607.99, 319,108.82 and 107,500.77 is: 161,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,607.99 : 319,108.82 = 107,500.77 : x
  2. Step 2: Convert to fraction form
    212,607.99/319,108.82 = 107,500.77/x
  3. Step 3: Cross multiply
    212,607.99x = 319,108.82 × 107,500.77
  4. Step 4: Simplify right side
    212,607.99x = 34,304,443,326.29
  5. Step 5: Solve for x
    x = 34,304,443,326.29/212,607.99
  6. Step 6: Final answer
    x = 161,350.68

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1.5x scale

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.