Home / 491,323.72-736,977.31-221,301.66

Finding the Fourth Proportional to 491,323.72, 736,977.31 and 221,301.66

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Solution

The fourth proportional to 491,323.72, 736,977.31 and 221,301.66 is: 331,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,323.72 : 736,977.31 = 221,301.66 : x
  2. Step 2: Convert to fraction form
    491,323.72/736,977.31 = 221,301.66/x
  3. Step 3: Cross multiply
    491,323.72x = 736,977.31 × 221,301.66
  4. Step 4: Simplify right side
    491,323.72x = 163,094,302,085.34
  5. Step 5: Solve for x
    x = 163,094,302,085.34/491,323.72
  6. Step 6: Final answer
    x = 331,948.77

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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.