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Finding the Fourth Proportional to 545,472.55, 818,337.60 and 171,495.55

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Solution

The fourth proportional to 545,472.55, 818,337.60 and 171,495.55 is: 257,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,472.55 : 818,337.60 = 171,495.55 : x
  2. Step 2: Convert to fraction form
    545,472.55/818,337.60 = 171,495.55/x
  3. Step 3: Cross multiply
    545,472.55x = 818,337.60 × 171,495.55
  4. Step 4: Simplify right side
    545,472.55x = 140,341,254,751.84
  5. Step 5: Solve for x
    x = 140,341,254,751.84/545,472.55
  6. Step 6: Final answer
    x = 257,283.81

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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.