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Finding the Fourth Proportional to 245,592.34, 338,914.05 and 138,162.34

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Solution

The fourth proportional to 245,592.34, 338,914.05 and 138,162.34 is: 190,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,592.34 : 338,914.05 = 138,162.34 : x
  2. Step 2: Convert to fraction form
    245,592.34/338,914.05 = 138,162.34/x
  3. Step 3: Cross multiply
    245,592.34x = 338,914.05 × 138,162.34
  4. Step 4: Simplify right side
    245,592.34x = 46,825,158,206.88
  5. Step 5: Solve for x
    x = 46,825,158,206.88/245,592.34
  6. Step 6: Final answer
    x = 190,662.13

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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.