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Finding the Fourth Proportional to 302,053.20, 453,079.80 and 202,520.40

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Solution

The fourth proportional to 302,053.20, 453,079.80 and 202,520.40 is: 303,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,053.20 : 453,079.80 = 202,520.40 : x
  2. Step 2: Convert to fraction form
    302,053.20/453,079.80 = 202,520.40/x
  3. Step 3: Cross multiply
    302,053.20x = 453,079.80 × 202,520.40
  4. Step 4: Simplify right side
    302,053.20x = 91,757,902,327.92
  5. Step 5: Solve for x
    x = 91,757,902,327.92/302,053.20
  6. Step 6: Final answer
    x = 303,780.60

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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.