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Finding the Fourth Proportional to 170,952.80, 256,426.80 and 77,458.40

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Solution

The fourth proportional to 170,952.80, 256,426.80 and 77,458.40 is: 116,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,952.80 : 256,426.80 = 77,458.40 : x
  2. Step 2: Convert to fraction form
    170,952.80/256,426.80 = 77,458.40/x
  3. Step 3: Cross multiply
    170,952.80x = 256,426.80 × 77,458.40
  4. Step 4: Simplify right side
    170,952.80x = 19,862,409,645.12
  5. Step 5: Solve for x
    x = 19,862,409,645.12/170,952.80
  6. Step 6: Final answer
    x = 116,186.51

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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.