Home / 215,013.84-322,478.64-204,345.36

Finding the Fourth Proportional to 215,013.84, 322,478.64 and 204,345.36

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Solution

The fourth proportional to 215,013.84, 322,478.64 and 204,345.36 is: 306,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,013.84 : 322,478.64 = 204,345.36 : x
  2. Step 2: Convert to fraction form
    215,013.84/322,478.64 = 204,345.36/x
  3. Step 3: Cross multiply
    215,013.84x = 322,478.64 × 204,345.36
  4. Step 4: Simplify right side
    215,013.84x = 65,897,013,783.11
  5. Step 5: Solve for x
    x = 65,897,013,783.11/215,013.84
  6. Step 6: Final answer
    x = 306,478.01

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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.