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Finding the Fourth Proportional to 422,059.60, 633,089.40 and 141,509.20

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Solution

The fourth proportional to 422,059.60, 633,089.40 and 141,509.20 is: 212,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,059.60 : 633,089.40 = 141,509.20 : x
  2. Step 2: Convert to fraction form
    422,059.60/633,089.40 = 141,509.20/x
  3. Step 3: Cross multiply
    422,059.60x = 633,089.40 × 141,509.20
  4. Step 4: Simplify right side
    422,059.60x = 89,587,974,522.48
  5. Step 5: Solve for x
    x = 89,587,974,522.48/422,059.60
  6. Step 6: Final answer
    x = 212,263.80

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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.