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Finding the Fourth Proportional to 545,283.96, 818,055.66 and 171,307.08

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Solution

The fourth proportional to 545,283.96, 818,055.66 and 171,307.08 is: 257,001.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,283.96 : 818,055.66 = 171,307.08 : x
  2. Step 2: Convert to fraction form
    545,283.96/818,055.66 = 171,307.08/x
  3. Step 3: Cross multiply
    545,283.96x = 818,055.66 × 171,307.08
  4. Step 4: Simplify right side
    545,283.96x = 140,138,726,392.07
  5. Step 5: Solve for x
    x = 140,138,726,392.07/545,283.96
  6. Step 6: Final answer
    x = 257,001.37

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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.