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Finding the Fourth Proportional to 265,604.72, 366,520.38 and 152,420

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Solution

The fourth proportional to 265,604.72, 366,520.38 and 152,420 is: 210,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,604.72 : 366,520.38 = 152,420 : x
  2. Step 2: Convert to fraction form
    265,604.72/366,520.38 = 152,420/x
  3. Step 3: Cross multiply
    265,604.72x = 366,520.38 × 152,420
  4. Step 4: Simplify right side
    265,604.72x = 55,865,036,319.60
  5. Step 5: Solve for x
    x = 55,865,036,319.60/265,604.72
  6. Step 6: Final answer
    x = 210,331.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.