Home / 217,423.43-299,996.42-210,255.54

Finding the Fourth Proportional to 217,423.43, 299,996.42 and 210,255.54

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Solution

The fourth proportional to 217,423.43, 299,996.42 and 210,255.54 is: 290,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,423.43 : 299,996.42 = 210,255.54 : x
  2. Step 2: Convert to fraction form
    217,423.43/299,996.42 = 210,255.54/x
  3. Step 3: Cross multiply
    217,423.43x = 299,996.42 × 210,255.54
  4. Step 4: Simplify right side
    217,423.43x = 63,075,909,285.17
  5. Step 5: Solve for x
    x = 63,075,909,285.17/217,423.43
  6. Step 6: Final answer
    x = 290,106.31

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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.