Home / 385,976.03-532,641.08-216,216.23

Finding the Fourth Proportional to 385,976.03, 532,641.08 and 216,216.23

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Solution

The fourth proportional to 385,976.03, 532,641.08 and 216,216.23 is: 298,375.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,976.03 : 532,641.08 = 216,216.23 : x
  2. Step 2: Convert to fraction form
    385,976.03/532,641.08 = 216,216.23/x
  3. Step 3: Cross multiply
    385,976.03x = 532,641.08 × 216,216.23
  4. Step 4: Simplify right side
    385,976.03x = 115,165,642,516.44
  5. Step 5: Solve for x
    x = 115,165,642,516.44/385,976.03
  6. Step 6: Final answer
    x = 298,375.12

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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.