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Finding the Fourth Proportional to 318,985.75, 440,210.30 and 183,044.56

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Solution

The fourth proportional to 318,985.75, 440,210.30 and 183,044.56 is: 252,607.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,985.75 : 440,210.30 = 183,044.56 : x
  2. Step 2: Convert to fraction form
    318,985.75/440,210.30 = 183,044.56/x
  3. Step 3: Cross multiply
    318,985.75x = 440,210.30 × 183,044.56
  4. Step 4: Simplify right side
    318,985.75x = 80,578,101,335.63
  5. Step 5: Solve for x
    x = 80,578,101,335.63/318,985.75
  6. Step 6: Final answer
    x = 252,607.22

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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.