Home / 283,106.79-390,688.70-162,255.22

Finding the Fourth Proportional to 283,106.79, 390,688.70 and 162,255.22

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Solution

The fourth proportional to 283,106.79, 390,688.70 and 162,255.22 is: 223,912.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,106.79 : 390,688.70 = 162,255.22 : x
  2. Step 2: Convert to fraction form
    283,106.79/390,688.70 = 162,255.22/x
  3. Step 3: Cross multiply
    283,106.79x = 390,688.70 × 162,255.22
  4. Step 4: Simplify right side
    283,106.79x = 63,391,279,182.02
  5. Step 5: Solve for x
    x = 63,391,279,182.02/283,106.79
  6. Step 6: Final answer
    x = 223,912.96

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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.