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Finding the Fourth Proportional to 453,305.60, 680,060.80 and 266,220.80

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Solution

The fourth proportional to 453,305.60, 680,060.80 and 266,220.80 is: 399,391.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,305.60 : 680,060.80 = 266,220.80 : x
  2. Step 2: Convert to fraction form
    453,305.60/680,060.80 = 266,220.80/x
  3. Step 3: Cross multiply
    453,305.60x = 680,060.80 × 266,220.80
  4. Step 4: Simplify right side
    453,305.60x = 181,046,330,224.64
  5. Step 5: Solve for x
    x = 181,046,330,224.64/453,305.60
  6. Step 6: Final answer
    x = 399,391.34

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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.