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Finding the Fourth Proportional to 440,297.65, 660,123.69 and 140,605.48

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Solution

The fourth proportional to 440,297.65, 660,123.69 and 140,605.48 is: 210,805.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,297.65 : 660,123.69 = 140,605.48 : x
  2. Step 2: Convert to fraction form
    440,297.65/660,123.69 = 140,605.48/x
  3. Step 3: Cross multiply
    440,297.65x = 660,123.69 × 140,605.48
  4. Step 4: Simplify right side
    440,297.65x = 92,817,008,291.82
  5. Step 5: Solve for x
    x = 92,817,008,291.82/440,297.65
  6. Step 6: Final answer
    x = 210,805.14

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1.5x scale

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.