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Finding the Fourth Proportional to 431,138.90, 594,990.05 and 240,152.24

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Solution

The fourth proportional to 431,138.90, 594,990.05 and 240,152.24 is: 331,420.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,138.90 : 594,990.05 = 240,152.24 : x
  2. Step 2: Convert to fraction form
    431,138.90/594,990.05 = 240,152.24/x
  3. Step 3: Cross multiply
    431,138.90x = 594,990.05 × 240,152.24
  4. Step 4: Simplify right side
    431,138.90x = 142,888,189,109.50
  5. Step 5: Solve for x
    x = 142,888,189,109.50/431,138.90
  6. Step 6: Final answer
    x = 331,420.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.