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Finding the Fourth Proportional to 293,423.40, 440,426.70 and 143,832.60

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Solution

The fourth proportional to 293,423.40, 440,426.70 and 143,832.60 is: 215,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,423.40 : 440,426.70 = 143,832.60 : x
  2. Step 2: Convert to fraction form
    293,423.40/440,426.70 = 143,832.60/x
  3. Step 3: Cross multiply
    293,423.40x = 440,426.70 × 143,832.60
  4. Step 4: Simplify right side
    293,423.40x = 63,347,717,370.42
  5. Step 5: Solve for x
    x = 63,347,717,370.42/293,423.40
  6. Step 6: Final answer
    x = 215,891.84

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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.