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Finding the Fourth Proportional to 228,457.47, 315,230.07 and 131,643.84

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Solution

The fourth proportional to 228,457.47, 315,230.07 and 131,643.84 is: 181,644.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,457.47 : 315,230.07 = 131,643.84 : x
  2. Step 2: Convert to fraction form
    228,457.47/315,230.07 = 131,643.84/x
  3. Step 3: Cross multiply
    228,457.47x = 315,230.07 × 131,643.84
  4. Step 4: Simplify right side
    228,457.47x = 41,498,096,898.27
  5. Step 5: Solve for x
    x = 41,498,096,898.27/228,457.47
  6. Step 6: Final answer
    x = 181,644.74

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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.