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Finding the Fourth Proportional to 143,225.40, 214,849.03 and 43,393.86

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Solution

The fourth proportional to 143,225.40, 214,849.03 and 43,393.86 is: 65,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,225.40 : 214,849.03 = 43,393.86 : x
  2. Step 2: Convert to fraction form
    143,225.40/214,849.03 = 43,393.86/x
  3. Step 3: Cross multiply
    143,225.40x = 214,849.03 × 43,393.86
  4. Step 4: Simplify right side
    143,225.40x = 9,323,128,728.96
  5. Step 5: Solve for x
    x = 9,323,128,728.96/143,225.40
  6. Step 6: Final answer
    x = 65,094.10

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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.