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Finding the Fourth Proportional to 440,300.10, 660,282.48 and 187,420.98

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Solution

The fourth proportional to 440,300.10, 660,282.48 and 187,420.98 is: 281,060.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,300.10 : 660,282.48 = 187,420.98 : x
  2. Step 2: Convert to fraction form
    440,300.10/660,282.48 = 187,420.98/x
  3. Step 3: Cross multiply
    440,300.10x = 660,282.48 × 187,420.98
  4. Step 4: Simplify right side
    440,300.10x = 123,750,789,478.43
  5. Step 5: Solve for x
    x = 123,750,789,478.43/440,300.10
  6. Step 6: Final answer
    x = 281,060.10

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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.