Home / 491,320.21-736,972.07-221,298.16

Finding the Fourth Proportional to 491,320.21, 736,972.07 and 221,298.16

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Solution

The fourth proportional to 491,320.21, 736,972.07 and 221,298.16 is: 331,943.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,320.21 : 736,972.07 = 221,298.16 : x
  2. Step 2: Convert to fraction form
    491,320.21/736,972.07 = 221,298.16/x
  3. Step 3: Cross multiply
    491,320.21x = 736,972.07 × 221,298.16
  4. Step 4: Simplify right side
    491,320.21x = 163,090,563,062.39
  5. Step 5: Solve for x
    x = 163,090,563,062.39/491,320.21
  6. Step 6: Final answer
    x = 331,943.53

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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.