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Finding the Fourth Proportional to 293,294.40, 440,476.20 and 256,552.80

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Solution

The fourth proportional to 293,294.40, 440,476.20 and 256,552.80 is: 385,296.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,294.40 : 440,476.20 = 256,552.80 : x
  2. Step 2: Convert to fraction form
    293,294.40/440,476.20 = 256,552.80/x
  3. Step 3: Cross multiply
    293,294.40x = 440,476.20 × 256,552.80
  4. Step 4: Simplify right side
    293,294.40x = 113,005,402,443.36
  5. Step 5: Solve for x
    x = 113,005,402,443.36/293,294.40
  6. Step 6: Final answer
    x = 385,296.83

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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.