Home / 208,321.24-312,432.30-89,927.80

Finding the Fourth Proportional to 208,321.24, 312,432.30 and 89,927.80

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Solution

The fourth proportional to 208,321.24, 312,432.30 and 89,927.80 is: 134,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,321.24 : 312,432.30 = 89,927.80 : x
  2. Step 2: Convert to fraction form
    208,321.24/312,432.30 = 89,927.80/x
  3. Step 3: Cross multiply
    208,321.24x = 312,432.30 × 89,927.80
  4. Step 4: Simplify right side
    208,321.24x = 28,096,349,387.94
  5. Step 5: Solve for x
    x = 28,096,349,387.94/208,321.24
  6. Step 6: Final answer
    x = 134,870.31

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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.