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Finding the Fourth Proportional to 171,197.55, 256,851.10 and 71,368.29

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Solution

The fourth proportional to 171,197.55, 256,851.10 and 71,368.29 is: 107,075.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,197.55 : 256,851.10 = 71,368.29 : x
  2. Step 2: Convert to fraction form
    171,197.55/256,851.10 = 71,368.29/x
  3. Step 3: Cross multiply
    171,197.55x = 256,851.10 × 71,368.29
  4. Step 4: Simplify right side
    171,197.55x = 18,331,023,880.83
  5. Step 5: Solve for x
    x = 18,331,023,880.83/171,197.55
  6. Step 6: Final answer
    x = 107,075.27

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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.