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Finding the Fourth Proportional to 221,100.23, 305,230.48 and 130,483.71

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Solution

The fourth proportional to 221,100.23, 305,230.48 and 130,483.71 is: 180,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,100.23 : 305,230.48 = 130,483.71 : x
  2. Step 2: Convert to fraction form
    221,100.23/305,230.48 = 130,483.71/x
  3. Step 3: Cross multiply
    221,100.23x = 305,230.48 × 130,483.71
  4. Step 4: Simplify right side
    221,100.23x = 39,827,605,109.27
  5. Step 5: Solve for x
    x = 39,827,605,109.27/221,100.23
  6. Step 6: Final answer
    x = 180,133.71

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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.