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Finding the Fourth Proportional to 438,317.80, 657,476.70 and 227,928.40

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Solution

The fourth proportional to 438,317.80, 657,476.70 and 227,928.40 is: 341,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,317.80 : 657,476.70 = 227,928.40 : x
  2. Step 2: Convert to fraction form
    438,317.80/657,476.70 = 227,928.40/x
  3. Step 3: Cross multiply
    438,317.80x = 657,476.70 × 227,928.40
  4. Step 4: Simplify right side
    438,317.80x = 149,857,612,268.28
  5. Step 5: Solve for x
    x = 149,857,612,268.28/438,317.80
  6. Step 6: Final answer
    x = 341,892.60

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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.