Home / 221,839.34-306,192.69-126,402.30

Finding the Fourth Proportional to 221,839.34, 306,192.69 and 126,402.30

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Solution

The fourth proportional to 221,839.34, 306,192.69 and 126,402.30 is: 174,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,839.34 : 306,192.69 = 126,402.30 : x
  2. Step 2: Convert to fraction form
    221,839.34/306,192.69 = 126,402.30/x
  3. Step 3: Cross multiply
    221,839.34x = 306,192.69 × 126,402.30
  4. Step 4: Simplify right side
    221,839.34x = 38,703,460,259.19
  5. Step 5: Solve for x
    x = 38,703,460,259.19/221,839.34
  6. Step 6: Final answer
    x = 174,466.18

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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.