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Finding the Fourth Proportional to 440,885.21, 660,774.42 and 238,473.23

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Solution

The fourth proportional to 440,885.21, 660,774.42 and 238,473.23 is: 357,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,885.21 : 660,774.42 = 238,473.23 : x
  2. Step 2: Convert to fraction form
    440,885.21/660,774.42 = 238,473.23/x
  3. Step 3: Cross multiply
    440,885.21x = 660,774.42 × 238,473.23
  4. Step 4: Simplify right side
    440,885.21x = 157,577,006,934.91
  5. Step 5: Solve for x
    x = 157,577,006,934.91/440,885.21
  6. Step 6: Final answer
    x = 357,410.51

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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.