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Finding the Fourth Proportional to 342,904.22, 473,105.44 and 221,853.76

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Solution

The fourth proportional to 342,904.22, 473,105.44 and 221,853.76 is: 306,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,904.22 : 473,105.44 = 221,853.76 : x
  2. Step 2: Convert to fraction form
    342,904.22/473,105.44 = 221,853.76/x
  3. Step 3: Cross multiply
    342,904.22x = 473,105.44 × 221,853.76
  4. Step 4: Simplify right side
    342,904.22x = 104,960,220,740.45
  5. Step 5: Solve for x
    x = 104,960,220,740.45/342,904.22
  6. Step 6: Final answer
    x = 306,091.95

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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.