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Finding the Fourth Proportional to 440,999.34, 661,560.84 and 141,409.50

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Solution

The fourth proportional to 440,999.34, 661,560.84 and 141,409.50 is: 212,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,999.34 : 661,560.84 = 141,409.50 : x
  2. Step 2: Convert to fraction form
    440,999.34/661,560.84 = 141,409.50/x
  3. Step 3: Cross multiply
    440,999.34x = 661,560.84 × 141,409.50
  4. Step 4: Simplify right side
    440,999.34x = 93,550,987,603.98
  5. Step 5: Solve for x
    x = 93,550,987,603.98/440,999.34
  6. Step 6: Final answer
    x = 212,134.08

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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.