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Finding the Fourth Proportional to 213,989.23, 295,279.95 and 123,344.11

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Solution

The fourth proportional to 213,989.23, 295,279.95 and 123,344.11 is: 170,200.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,989.23 : 295,279.95 = 123,344.11 : x
  2. Step 2: Convert to fraction form
    213,989.23/295,279.95 = 123,344.11/x
  3. Step 3: Cross multiply
    213,989.23x = 295,279.95 × 123,344.11
  4. Step 4: Simplify right side
    213,989.23x = 36,421,042,633.59
  5. Step 5: Solve for x
    x = 36,421,042,633.59/213,989.23
  6. Step 6: Final answer
    x = 170,200.35

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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.