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Finding the Fourth Proportional to 293,805.20, 440,707.80 and 268,000.40

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Solution

The fourth proportional to 293,805.20, 440,707.80 and 268,000.40 is: 402,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,805.20 : 440,707.80 = 268,000.40 : x
  2. Step 2: Convert to fraction form
    293,805.20/440,707.80 = 268,000.40/x
  3. Step 3: Cross multiply
    293,805.20x = 440,707.80 × 268,000.40
  4. Step 4: Simplify right side
    293,805.20x = 118,109,866,683.12
  5. Step 5: Solve for x
    x = 118,109,866,683.12/293,805.20
  6. Step 6: Final answer
    x = 402,000.60

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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.