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Finding the Fourth Proportional to 221,750.50, 305,656.32 and 173,267.68

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Solution

The fourth proportional to 221,750.50, 305,656.32 and 173,267.68 is: 238,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,750.50 : 305,656.32 = 173,267.68 : x
  2. Step 2: Convert to fraction form
    221,750.50/305,656.32 = 173,267.68/x
  3. Step 3: Cross multiply
    221,750.50x = 305,656.32 × 173,267.68
  4. Step 4: Simplify right side
    221,750.50x = 52,960,361,443.74
  5. Step 5: Solve for x
    x = 52,960,361,443.74/221,750.50
  6. Step 6: Final answer
    x = 238,828.60

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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.