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Finding the Fourth Proportional to 171,689.68, 257,485.26 and 51,758.32

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Solution

The fourth proportional to 171,689.68, 257,485.26 and 51,758.32 is: 77,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,689.68 : 257,485.26 = 51,758.32 : x
  2. Step 2: Convert to fraction form
    171,689.68/257,485.26 = 51,758.32/x
  3. Step 3: Cross multiply
    171,689.68x = 257,485.26 × 51,758.32
  4. Step 4: Simplify right side
    171,689.68x = 13,327,004,482.36
  5. Step 5: Solve for x
    x = 13,327,004,482.36/171,689.68
  6. Step 6: Final answer
    x = 77,622.63

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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.