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Finding the Fourth Proportional to 356,393.07, 491,822.28 and 213,153.12

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Solution

The fourth proportional to 356,393.07, 491,822.28 and 213,153.12 is: 294,151.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,393.07 : 491,822.28 = 213,153.12 : x
  2. Step 2: Convert to fraction form
    356,393.07/491,822.28 = 213,153.12/x
  3. Step 3: Cross multiply
    356,393.07x = 491,822.28 × 213,153.12
  4. Step 4: Simplify right side
    356,393.07x = 104,833,453,467.51
  5. Step 5: Solve for x
    x = 104,833,453,467.51/356,393.07
  6. Step 6: Final answer
    x = 294,151.21

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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.