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Finding the Fourth Proportional to 201,007.30, 301,510.95 and 126,211.90

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Solution

The fourth proportional to 201,007.30, 301,510.95 and 126,211.90 is: 189,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,007.30 : 301,510.95 = 126,211.90 : x
  2. Step 2: Convert to fraction form
    201,007.30/301,510.95 = 126,211.90/x
  3. Step 3: Cross multiply
    201,007.30x = 301,510.95 × 126,211.90
  4. Step 4: Simplify right side
    201,007.30x = 38,054,269,870.31
  5. Step 5: Solve for x
    x = 38,054,269,870.31/201,007.30
  6. Step 6: Final answer
    x = 189,317.85

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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.