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Finding the Fourth Proportional to 437,731.80, 656,208.90 and 260,050.20

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Solution

The fourth proportional to 437,731.80, 656,208.90 and 260,050.20 is: 389,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,731.80 : 656,208.90 = 260,050.20 : x
  2. Step 2: Convert to fraction form
    437,731.80/656,208.90 = 260,050.20/x
  3. Step 3: Cross multiply
    437,731.80x = 656,208.90 × 260,050.20
  4. Step 4: Simplify right side
    437,731.80x = 170,647,255,686.78
  5. Step 5: Solve for x
    x = 170,647,255,686.78/437,731.80
  6. Step 6: Final answer
    x = 389,844.32

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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.