Home / 228,276.89-342,462.03-78,497.72

Finding the Fourth Proportional to 228,276.89, 342,462.03 and 78,497.72

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Solution

The fourth proportional to 228,276.89, 342,462.03 and 78,497.72 is: 117,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,276.89 : 342,462.03 = 78,497.72 : x
  2. Step 2: Convert to fraction form
    228,276.89/342,462.03 = 78,497.72/x
  3. Step 3: Cross multiply
    228,276.89x = 342,462.03 × 78,497.72
  4. Step 4: Simplify right side
    228,276.89x = 26,882,486,829.26
  5. Step 5: Solve for x
    x = 26,882,486,829.26/228,276.89
  6. Step 6: Final answer
    x = 117,762.63

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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.