Home / 228,528.20-315,329.76-142,514.17

Finding the Fourth Proportional to 228,528.20, 315,329.76 and 142,514.17

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Solution

The fourth proportional to 228,528.20, 315,329.76 and 142,514.17 is: 196,645.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,528.20 : 315,329.76 = 142,514.17 : x
  2. Step 2: Convert to fraction form
    228,528.20/315,329.76 = 142,514.17/x
  3. Step 3: Cross multiply
    228,528.20x = 315,329.76 × 142,514.17
  4. Step 4: Simplify right side
    228,528.20x = 44,938,958,234.37
  5. Step 5: Solve for x
    x = 44,938,958,234.37/228,528.20
  6. Step 6: Final answer
    x = 196,645.13

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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.