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Finding the Fourth Proportional to 228,269.95, 342,332.33 and 78,474.22

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Solution

The fourth proportional to 228,269.95, 342,332.33 and 78,474.22 is: 117,686.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,269.95 : 342,332.33 = 78,474.22 : x
  2. Step 2: Convert to fraction form
    228,269.95/342,332.33 = 78,474.22/x
  3. Step 3: Cross multiply
    228,269.95x = 342,332.33 × 78,474.22
  4. Step 4: Simplify right side
    228,269.95x = 26,864,261,329.33
  5. Step 5: Solve for x
    x = 26,864,261,329.33/228,269.95
  6. Step 6: Final answer
    x = 117,686.37

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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.