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Finding the Fourth Proportional to 347,627.70, 521,441.55 and 147,954.60

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Solution

The fourth proportional to 347,627.70, 521,441.55 and 147,954.60 is: 221,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,627.70 : 521,441.55 = 147,954.60 : x
  2. Step 2: Convert to fraction form
    347,627.70/521,441.55 = 147,954.60/x
  3. Step 3: Cross multiply
    347,627.70x = 521,441.55 × 147,954.60
  4. Step 4: Simplify right side
    347,627.70x = 77,149,675,953.63
  5. Step 5: Solve for x
    x = 77,149,675,953.63/347,627.70
  6. Step 6: Final answer
    x = 221,931.90

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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.