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Finding the Fourth Proportional to 220,504.84, 304,302.90 and 129,866.92

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Solution

The fourth proportional to 220,504.84, 304,302.90 and 129,866.92 is: 179,220.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,504.84 : 304,302.90 = 129,866.92 : x
  2. Step 2: Convert to fraction form
    220,504.84/304,302.90 = 129,866.92/x
  3. Step 3: Cross multiply
    220,504.84x = 304,302.90 × 129,866.92
  4. Step 4: Simplify right side
    220,504.84x = 39,518,880,370.07
  5. Step 5: Solve for x
    x = 39,518,880,370.07/220,504.84
  6. Step 6: Final answer
    x = 179,220.01

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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.