Home / 217,561.95-300,265.38-122,074.29

Finding the Fourth Proportional to 217,561.95, 300,265.38 and 122,074.29

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Solution

The fourth proportional to 217,561.95, 300,265.38 and 122,074.29 is: 168,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,561.95 : 300,265.38 = 122,074.29 : x
  2. Step 2: Convert to fraction form
    217,561.95/300,265.38 = 122,074.29/x
  3. Step 3: Cross multiply
    217,561.95x = 300,265.38 × 122,074.29
  4. Step 4: Simplify right side
    217,561.95x = 36,654,683,075.08
  5. Step 5: Solve for x
    x = 36,654,683,075.08/217,561.95
  6. Step 6: Final answer
    x = 168,479.29

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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.