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Finding the Fourth Proportional to 438,315.80, 657,473.70 and 227,926.40

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Solution

The fourth proportional to 438,315.80, 657,473.70 and 227,926.40 is: 341,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,315.80 : 657,473.70 = 227,926.40 : x
  2. Step 2: Convert to fraction form
    438,315.80/657,473.70 = 227,926.40/x
  3. Step 3: Cross multiply
    438,315.80x = 657,473.70 × 227,926.40
  4. Step 4: Simplify right side
    438,315.80x = 149,855,613,535.68
  5. Step 5: Solve for x
    x = 149,855,613,535.68/438,315.80
  6. Step 6: Final answer
    x = 341,889.60

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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.