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Finding the Fourth Proportional to 317,646.56, 476,482.80 and 80,995.38

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Solution

The fourth proportional to 317,646.56, 476,482.80 and 80,995.38 is: 121,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,646.56 : 476,482.80 = 80,995.38 : x
  2. Step 2: Convert to fraction form
    317,646.56/476,482.80 = 80,995.38/x
  3. Step 3: Cross multiply
    317,646.56x = 476,482.80 × 80,995.38
  4. Step 4: Simplify right side
    317,646.56x = 38,592,903,966.39
  5. Step 5: Solve for x
    x = 38,592,903,966.39/317,646.56
  6. Step 6: Final answer
    x = 121,496.37

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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.