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Finding the Fourth Proportional to 302,110.20, 452,646.90 and 143,998.20

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Solution

The fourth proportional to 302,110.20, 452,646.90 and 143,998.20 is: 215,750.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,110.20 : 452,646.90 = 143,998.20 : x
  2. Step 2: Convert to fraction form
    302,110.20/452,646.90 = 143,998.20/x
  3. Step 3: Cross multiply
    302,110.20x = 452,646.90 × 143,998.20
  4. Step 4: Simplify right side
    302,110.20x = 65,180,338,835.58
  5. Step 5: Solve for x
    x = 65,180,338,835.58/302,110.20
  6. Step 6: Final answer
    x = 215,750.21

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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.