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Finding the Fourth Proportional to 201,123.48, 301,812.30 and 112,435.24

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Solution

The fourth proportional to 201,123.48, 301,812.30 and 112,435.24 is: 168,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,123.48 : 301,812.30 = 112,435.24 : x
  2. Step 2: Convert to fraction form
    201,123.48/301,812.30 = 112,435.24/x
  3. Step 3: Cross multiply
    201,123.48x = 301,812.30 × 112,435.24
  4. Step 4: Simplify right side
    201,123.48x = 33,934,338,385.45
  5. Step 5: Solve for x
    x = 33,934,338,385.45/201,123.48
  6. Step 6: Final answer
    x = 168,723.90

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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.