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Finding the Fourth Proportional to 293,601.20, 440,401.80 and 290,836.40

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Solution

The fourth proportional to 293,601.20, 440,401.80 and 290,836.40 is: 436,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,601.20 : 440,401.80 = 290,836.40 : x
  2. Step 2: Convert to fraction form
    293,601.20/440,401.80 = 290,836.40/x
  3. Step 3: Cross multiply
    293,601.20x = 440,401.80 × 290,836.40
  4. Step 4: Simplify right side
    293,601.20x = 128,084,874,065.52
  5. Step 5: Solve for x
    x = 128,084,874,065.52/293,601.20
  6. Step 6: Final answer
    x = 436,254.60

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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.