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Finding the Fourth Proportional to 265,524.01, 398,325.32 and 85,549.12

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Solution

The fourth proportional to 265,524.01, 398,325.32 and 85,549.12 is: 128,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,524.01 : 398,325.32 = 85,549.12 : x
  2. Step 2: Convert to fraction form
    265,524.01/398,325.32 = 85,549.12/x
  3. Step 3: Cross multiply
    265,524.01x = 398,325.32 × 85,549.12
  4. Step 4: Simplify right side
    265,524.01x = 34,076,379,476.28
  5. Step 5: Solve for x
    x = 34,076,379,476.28/265,524.01
  6. Step 6: Final answer
    x = 128,336.34

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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.