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Finding the Fourth Proportional to 440,773.48, 661,157.47 and 212,803.10

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Solution

The fourth proportional to 440,773.48, 661,157.47 and 212,803.10 is: 319,203.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,773.48 : 661,157.47 = 212,803.10 : x
  2. Step 2: Convert to fraction form
    440,773.48/661,157.47 = 212,803.10/x
  3. Step 3: Cross multiply
    440,773.48x = 661,157.47 × 212,803.10
  4. Step 4: Simplify right side
    440,773.48x = 140,696,359,204.16
  5. Step 5: Solve for x
    x = 140,696,359,204.16/440,773.48
  6. Step 6: Final answer
    x = 319,203.32

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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.