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Finding the Fourth Proportional to 545,335.04, 818,125.44 and 166,289.28

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Solution

The fourth proportional to 545,335.04, 818,125.44 and 166,289.28 is: 249,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,335.04 : 818,125.44 = 166,289.28 : x
  2. Step 2: Convert to fraction form
    545,335.04/818,125.44 = 166,289.28/x
  3. Step 3: Cross multiply
    545,335.04x = 818,125.44 × 166,289.28
  4. Step 4: Simplify right side
    545,335.04x = 136,045,490,367.28
  5. Step 5: Solve for x
    x = 136,045,490,367.28/545,335.04
  6. Step 6: Final answer
    x = 249,471.39

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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.