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Finding the Fourth Proportional to 201,156.60, 301,907.70 and 89,009.40

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Solution

The fourth proportional to 201,156.60, 301,907.70 and 89,009.40 is: 133,590.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,156.60 : 301,907.70 = 89,009.40 : x
  2. Step 2: Convert to fraction form
    201,156.60/301,907.70 = 89,009.40/x
  3. Step 3: Cross multiply
    201,156.60x = 301,907.70 × 89,009.40
  4. Step 4: Simplify right side
    201,156.60x = 26,872,623,232.38
  5. Step 5: Solve for x
    x = 26,872,623,232.38/201,156.60
  6. Step 6: Final answer
    x = 133,590.56

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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.