Home / 221,368.52-305,487.11-125,875.22

Finding the Fourth Proportional to 221,368.52, 305,487.11 and 125,875.22

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Solution

The fourth proportional to 221,368.52, 305,487.11 and 125,875.22 is: 173,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,368.52 : 305,487.11 = 125,875.22 : x
  2. Step 2: Convert to fraction form
    221,368.52/305,487.11 = 125,875.22/x
  3. Step 3: Cross multiply
    221,368.52x = 305,487.11 × 125,875.22
  4. Step 4: Simplify right side
    221,368.52x = 38,453,255,021.60
  5. Step 5: Solve for x
    x = 38,453,255,021.60/221,368.52
  6. Step 6: Final answer
    x = 173,706.97

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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.