Home / 221,800.04-306,083.62-126,306.76

Finding the Fourth Proportional to 221,800.04, 306,083.62 and 126,306.76

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Solution

The fourth proportional to 221,800.04, 306,083.62 and 126,306.76 is: 174,303.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,800.04 : 306,083.62 = 126,306.76 : x
  2. Step 2: Convert to fraction form
    221,800.04/306,083.62 = 126,306.76/x
  3. Step 3: Cross multiply
    221,800.04x = 306,083.62 × 126,306.76
  4. Step 4: Simplify right side
    221,800.04x = 38,660,430,331.27
  5. Step 5: Solve for x
    x = 38,660,430,331.27/221,800.04
  6. Step 6: Final answer
    x = 174,303.08

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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.