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Finding the Fourth Proportional to 545,188.31, 752,354.28 and 300,165.33

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Solution

The fourth proportional to 545,188.31, 752,354.28 and 300,165.33 is: 414,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,188.31 : 752,354.28 = 300,165.33 : x
  2. Step 2: Convert to fraction form
    545,188.31/752,354.28 = 300,165.33/x
  3. Step 3: Cross multiply
    545,188.31x = 752,354.28 × 300,165.33
  4. Step 4: Simplify right side
    545,188.31x = 225,830,670,733.11
  5. Step 5: Solve for x
    x = 225,830,670,733.11/545,188.31
  6. Step 6: Final answer
    x = 414,225.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.