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Finding the Fourth Proportional to 440,018.91, 660,022.80 and 140,495.70

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Solution

The fourth proportional to 440,018.91, 660,022.80 and 140,495.70 is: 210,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,018.91 : 660,022.80 = 140,495.70 : x
  2. Step 2: Convert to fraction form
    440,018.91/660,022.80 = 140,495.70/x
  3. Step 3: Cross multiply
    440,018.91x = 660,022.80 × 140,495.70
  4. Step 4: Simplify right side
    440,018.91x = 92,730,365,301.96
  5. Step 5: Solve for x
    x = 92,730,365,301.96/440,018.91
  6. Step 6: Final answer
    x = 210,741.77

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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.