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Finding the Fourth Proportional to 201,111.36, 301,394.88 and 76,384.32

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Solution

The fourth proportional to 201,111.36, 301,394.88 and 76,384.32 is: 114,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,111.36 : 301,394.88 = 76,384.32 : x
  2. Step 2: Convert to fraction form
    201,111.36/301,394.88 = 76,384.32/x
  3. Step 3: Cross multiply
    201,111.36x = 301,394.88 × 76,384.32
  4. Step 4: Simplify right side
    201,111.36x = 23,021,842,960.28
  5. Step 5: Solve for x
    x = 23,021,842,960.28/201,111.36
  6. Step 6: Final answer
    x = 114,473.11

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1.5x scale

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.