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Finding the Fourth Proportional to 228,410.81, 342,649.02 and 70,651.56

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Solution

The fourth proportional to 228,410.81, 342,649.02 and 70,651.56 is: 105,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,410.81 : 342,649.02 = 70,651.56 : x
  2. Step 2: Convert to fraction form
    228,410.81/342,649.02 = 70,651.56/x
  3. Step 3: Cross multiply
    228,410.81x = 342,649.02 × 70,651.56
  4. Step 4: Simplify right side
    228,410.81x = 24,208,687,795.47
  5. Step 5: Solve for x
    x = 24,208,687,795.47/228,410.81
  6. Step 6: Final answer
    x = 105,987.49

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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.