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Finding the Fourth Proportional to 380,891.72, 571,449.36 and 170,482.88

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Solution

The fourth proportional to 380,891.72, 571,449.36 and 170,482.88 is: 255,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,891.72 : 571,449.36 = 170,482.88 : x
  2. Step 2: Convert to fraction form
    380,891.72/571,449.36 = 170,482.88/x
  3. Step 3: Cross multiply
    380,891.72x = 571,449.36 × 170,482.88
  4. Step 4: Simplify right side
    380,891.72x = 97,422,332,666.96
  5. Step 5: Solve for x
    x = 97,422,332,666.96/380,891.72
  6. Step 6: Final answer
    x = 255,774.35

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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.