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Finding the Fourth Proportional to 460,353.21, 635,285.46 and 256,406.55

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Solution

The fourth proportional to 460,353.21, 635,285.46 and 256,406.55 is: 353,839.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,353.21 : 635,285.46 = 256,406.55 : x
  2. Step 2: Convert to fraction form
    460,353.21/635,285.46 = 256,406.55/x
  3. Step 3: Cross multiply
    460,353.21x = 635,285.46 × 256,406.55
  4. Step 4: Simplify right side
    460,353.21x = 162,891,353,063.76
  5. Step 5: Solve for x
    x = 162,891,353,063.76/460,353.21
  6. Step 6: Final answer
    x = 353,839.94

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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.