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Finding the Fourth Proportional to 306,454.80, 458,807.40 and 271,462.80

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Solution

The fourth proportional to 306,454.80, 458,807.40 and 271,462.80 is: 406,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,454.80 : 458,807.40 = 271,462.80 : x
  2. Step 2: Convert to fraction form
    306,454.80/458,807.40 = 271,462.80/x
  3. Step 3: Cross multiply
    306,454.80x = 458,807.40 × 271,462.80
  4. Step 4: Simplify right side
    306,454.80x = 124,549,141,464.72
  5. Step 5: Solve for x
    x = 124,549,141,464.72/306,454.80
  6. Step 6: Final answer
    x = 406,419.29

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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.