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Finding the Fourth Proportional to 356,420.16, 491,859.48 and 195,285.24

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Solution

The fourth proportional to 356,420.16, 491,859.48 and 195,285.24 is: 269,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,420.16 : 491,859.48 = 195,285.24 : x
  2. Step 2: Convert to fraction form
    356,420.16/491,859.48 = 195,285.24/x
  3. Step 3: Cross multiply
    356,420.16x = 491,859.48 × 195,285.24
  4. Step 4: Simplify right side
    356,420.16x = 96,052,896,598.08
  5. Step 5: Solve for x
    x = 96,052,896,598.08/356,420.16
  6. Step 6: Final answer
    x = 269,493.44

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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.