Home / 385,581.51-532,102.41-215,815.68

Finding the Fourth Proportional to 385,581.51, 532,102.41 and 215,815.68

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Solution

The fourth proportional to 385,581.51, 532,102.41 and 215,815.68 is: 297,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,581.51 : 532,102.41 = 215,815.68 : x
  2. Step 2: Convert to fraction form
    385,581.51/532,102.41 = 215,815.68/x
  3. Step 3: Cross multiply
    385,581.51x = 532,102.41 × 215,815.68
  4. Step 4: Simplify right side
    385,581.51x = 114,836,043,443.79
  5. Step 5: Solve for x
    x = 114,836,043,443.79/385,581.51
  6. Step 6: Final answer
    x = 297,825.60

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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.