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Finding the Fourth Proportional to 228,367.80, 342,551.70 and 153,718.20

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Solution

The fourth proportional to 228,367.80, 342,551.70 and 153,718.20 is: 230,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,367.80 : 342,551.70 = 153,718.20 : x
  2. Step 2: Convert to fraction form
    228,367.80/342,551.70 = 153,718.20/x
  3. Step 3: Cross multiply
    228,367.80x = 342,551.70 × 153,718.20
  4. Step 4: Simplify right side
    228,367.80x = 52,656,430,730.94
  5. Step 5: Solve for x
    x = 52,656,430,730.94/228,367.80
  6. Step 6: Final answer
    x = 230,577.30

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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.