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Finding the Fourth Proportional to 302,080.20, 452,601.90 and 143,968.20

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Solution

The fourth proportional to 302,080.20, 452,601.90 and 143,968.20 is: 215,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,080.20 : 452,601.90 = 143,968.20 : x
  2. Step 2: Convert to fraction form
    302,080.20/452,601.90 = 143,968.20/x
  3. Step 3: Cross multiply
    302,080.20x = 452,601.90 × 143,968.20
  4. Step 4: Simplify right side
    302,080.20x = 65,160,280,859.58
  5. Step 5: Solve for x
    x = 65,160,280,859.58/302,080.20
  6. Step 6: Final answer
    x = 215,705.24

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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.