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Finding the Fourth Proportional to 485,515.52, 670,014.24 and 270,669.12

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Solution

The fourth proportional to 485,515.52, 670,014.24 and 270,669.12 is: 373,524.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,515.52 : 670,014.24 = 270,669.12 : x
  2. Step 2: Convert to fraction form
    485,515.52/670,014.24 = 270,669.12/x
  3. Step 3: Cross multiply
    485,515.52x = 670,014.24 × 270,669.12
  4. Step 4: Simplify right side
    485,515.52x = 181,352,164,728.27
  5. Step 5: Solve for x
    x = 181,352,164,728.27/485,515.52
  6. Step 6: Final answer
    x = 373,524.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.