Home / 380,701.62-525,369.04-210,935.75

Finding the Fourth Proportional to 380,701.62, 525,369.04 and 210,935.75

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Solution

The fourth proportional to 380,701.62, 525,369.04 and 210,935.75 is: 291,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,701.62 : 525,369.04 = 210,935.75 : x
  2. Step 2: Convert to fraction form
    380,701.62/525,369.04 = 210,935.75/x
  3. Step 3: Cross multiply
    380,701.62x = 525,369.04 × 210,935.75
  4. Step 4: Simplify right side
    380,701.62x = 110,819,109,325.00
  5. Step 5: Solve for x
    x = 110,819,109,325.00/380,701.62
  6. Step 6: Final answer
    x = 291,091.77

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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.