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Finding the Fourth Proportional to 171,644.80, 257,515.80 and 53,328.10

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Solution

The fourth proportional to 171,644.80, 257,515.80 and 53,328.10 is: 80,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,644.80 : 257,515.80 = 53,328.10 : x
  2. Step 2: Convert to fraction form
    171,644.80/257,515.80 = 53,328.10/x
  3. Step 3: Cross multiply
    171,644.80x = 257,515.80 × 53,328.10
  4. Step 4: Simplify right side
    171,644.80x = 13,732,828,333.98
  5. Step 5: Solve for x
    x = 13,732,828,333.98/171,644.80
  6. Step 6: Final answer
    x = 80,007.25

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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.