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Finding the Fourth Proportional to 545,083.42, 817,720.71 and 225,233.86

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Solution

The fourth proportional to 545,083.42, 817,720.71 and 225,233.86 is: 337,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,083.42 : 817,720.71 = 225,233.86 : x
  2. Step 2: Convert to fraction form
    545,083.42/817,720.71 = 225,233.86/x
  3. Step 3: Cross multiply
    545,083.42x = 817,720.71 × 225,233.86
  4. Step 4: Simplify right side
    545,083.42x = 184,178,391,915.24
  5. Step 5: Solve for x
    x = 184,178,391,915.24/545,083.42
  6. Step 6: Final answer
    x = 337,890.28

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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.