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Finding the Fourth Proportional to 471,995.35, 651,351.03 and 257,134.90

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Solution

The fourth proportional to 471,995.35, 651,351.03 and 257,134.90 is: 354,844.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,995.35 : 651,351.03 = 257,134.90 : x
  2. Step 2: Convert to fraction form
    471,995.35/651,351.03 = 257,134.90/x
  3. Step 3: Cross multiply
    471,995.35x = 651,351.03 × 257,134.90
  4. Step 4: Simplify right side
    471,995.35x = 167,485,081,963.95
  5. Step 5: Solve for x
    x = 167,485,081,963.95/471,995.35
  6. Step 6: Final answer
    x = 354,844.77

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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.