Home / 300,777.30-415,045.07-173,428.29

Finding the Fourth Proportional to 300,777.30, 415,045.07 and 173,428.29

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Solution

The fourth proportional to 300,777.30, 415,045.07 and 173,428.29 is: 239,315.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,777.30 : 415,045.07 = 173,428.29 : x
  2. Step 2: Convert to fraction form
    300,777.30/415,045.07 = 173,428.29/x
  3. Step 3: Cross multiply
    300,777.30x = 415,045.07 × 173,428.29
  4. Step 4: Simplify right side
    300,777.30x = 71,980,556,763.03
  5. Step 5: Solve for x
    x = 71,980,556,763.03/300,777.30
  6. Step 6: Final answer
    x = 239,315.12

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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.