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Finding the Fourth Proportional to 249,704.10, 374,228.10 and 221,491.80

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Solution

The fourth proportional to 249,704.10, 374,228.10 and 221,491.80 is: 331,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,704.10 : 374,228.10 = 221,491.80 : x
  2. Step 2: Convert to fraction form
    249,704.10/374,228.10 = 221,491.80/x
  3. Step 3: Cross multiply
    249,704.10x = 374,228.10 × 221,491.80
  4. Step 4: Simplify right side
    249,704.10x = 82,888,455,479.58
  5. Step 5: Solve for x
    x = 82,888,455,479.58/249,704.10
  6. Step 6: Final answer
    x = 331,946.71

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1.5x scale

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.