Home / 401,091.84-553,500-239,855.22

Finding the Fourth Proportional to 401,091.84, 553,500 and 239,855.22

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Solution

The fourth proportional to 401,091.84, 553,500 and 239,855.22 is: 330,996.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,091.84 : 553,500 = 239,855.22 : x
  2. Step 2: Convert to fraction form
    401,091.84/553,500 = 239,855.22/x
  3. Step 3: Cross multiply
    401,091.84x = 553,500 × 239,855.22
  4. Step 4: Simplify right side
    401,091.84x = 132,759,864,270
  5. Step 5: Solve for x
    x = 132,759,864,270/401,091.84
  6. Step 6: Final answer
    x = 330,996.17

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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.