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Finding the Fourth Proportional to 319,251.61, 440,109.29 and 251,150.22

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Solution

The fourth proportional to 319,251.61, 440,109.29 and 251,150.22 is: 346,227.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,251.61 : 440,109.29 = 251,150.22 : x
  2. Step 2: Convert to fraction form
    319,251.61/440,109.29 = 251,150.22/x
  3. Step 3: Cross multiply
    319,251.61x = 440,109.29 × 251,150.22
  4. Step 4: Simplify right side
    319,251.61x = 110,533,545,635.42
  5. Step 5: Solve for x
    x = 110,533,545,635.42/319,251.61
  6. Step 6: Final answer
    x = 346,227.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.