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Finding the Fourth Proportional to 211,673.88, 317,344.35 and 144,911.66

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Solution

The fourth proportional to 211,673.88, 317,344.35 and 144,911.66 is: 217,253.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,673.88 : 317,344.35 = 144,911.66 : x
  2. Step 2: Convert to fraction form
    211,673.88/317,344.35 = 144,911.66/x
  3. Step 3: Cross multiply
    211,673.88x = 317,344.35 × 144,911.66
  4. Step 4: Simplify right side
    211,673.88x = 45,986,894,963.40
  5. Step 5: Solve for x
    x = 45,986,894,963.40/211,673.88
  6. Step 6: Final answer
    x = 217,253.52

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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.