Home / 208,237.20-312,323.40-58,462.80

Finding the Fourth Proportional to 208,237.20, 312,323.40 and 58,462.80

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Solution

The fourth proportional to 208,237.20, 312,323.40 and 58,462.80 is: 87,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,237.20 : 312,323.40 = 58,462.80 : x
  2. Step 2: Convert to fraction form
    208,237.20/312,323.40 = 58,462.80/x
  3. Step 3: Cross multiply
    208,237.20x = 312,323.40 × 58,462.80
  4. Step 4: Simplify right side
    208,237.20x = 18,259,300,469.52
  5. Step 5: Solve for x
    x = 18,259,300,469.52/208,237.20
  6. Step 6: Final answer
    x = 87,685.10

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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.