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Finding the Fourth Proportional to 302,426.80, 453,640.20 and 297,761.20

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Solution

The fourth proportional to 302,426.80, 453,640.20 and 297,761.20 is: 446,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,426.80 : 453,640.20 = 297,761.20 : x
  2. Step 2: Convert to fraction form
    302,426.80/453,640.20 = 297,761.20/x
  3. Step 3: Cross multiply
    302,426.80x = 453,640.20 × 297,761.20
  4. Step 4: Simplify right side
    302,426.80x = 135,076,450,320.24
  5. Step 5: Solve for x
    x = 135,076,450,320.24/302,426.80
  6. Step 6: Final answer
    x = 446,641.80

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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.