Home / 245,592.48-338,898.24-138,141.12

Finding the Fourth Proportional to 245,592.48, 338,898.24 and 138,141.12

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Solution

The fourth proportional to 245,592.48, 338,898.24 and 138,141.12 is: 190,623.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,592.48 : 338,898.24 = 138,141.12 : x
  2. Step 2: Convert to fraction form
    245,592.48/338,898.24 = 138,141.12/x
  3. Step 3: Cross multiply
    245,592.48x = 338,898.24 × 138,141.12
  4. Step 4: Simplify right side
    245,592.48x = 46,815,782,439.63
  5. Step 5: Solve for x
    x = 46,815,782,439.63/245,592.48
  6. Step 6: Final answer
    x = 190,623.84

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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.