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Finding the Fourth Proportional to 180,503.72, 270,459.66 and 127,818.60

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Solution

The fourth proportional to 180,503.72, 270,459.66 and 127,818.60 is: 191,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,503.72 : 270,459.66 = 127,818.60 : x
  2. Step 2: Convert to fraction form
    180,503.72/270,459.66 = 127,818.60/x
  3. Step 3: Cross multiply
    180,503.72x = 270,459.66 × 127,818.60
  4. Step 4: Simplify right side
    180,503.72x = 34,569,775,097.68
  5. Step 5: Solve for x
    x = 34,569,775,097.68/180,503.72
  6. Step 6: Final answer
    x = 191,518.35

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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.