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Finding the Fourth Proportional to 275,225.60, 379,459.71 and 178,258.34

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Solution

The fourth proportional to 275,225.60, 379,459.71 and 178,258.34 is: 245,768.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,225.60 : 379,459.71 = 178,258.34 : x
  2. Step 2: Convert to fraction form
    275,225.60/379,459.71 = 178,258.34/x
  3. Step 3: Cross multiply
    275,225.60x = 379,459.71 × 178,258.34
  4. Step 4: Simplify right side
    275,225.60x = 67,641,858,950.13
  5. Step 5: Solve for x
    x = 67,641,858,950.13/275,225.60
  6. Step 6: Final answer
    x = 245,768.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.