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Finding the Fourth Proportional to 201,772.80, 302,549.85 and 83,310.30

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Solution

The fourth proportional to 201,772.80, 302,549.85 and 83,310.30 is: 124,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,772.80 : 302,549.85 = 83,310.30 : x
  2. Step 2: Convert to fraction form
    201,772.80/302,549.85 = 83,310.30/x
  3. Step 3: Cross multiply
    201,772.80x = 302,549.85 × 83,310.30
  4. Step 4: Simplify right side
    201,772.80x = 25,205,518,768.46
  5. Step 5: Solve for x
    x = 25,205,518,768.46/201,772.80
  6. Step 6: Final answer
    x = 124,920.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.