Home / 305,535.42-458,302.32-172,355.22

Finding the Fourth Proportional to 305,535.42, 458,302.32 and 172,355.22

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Solution

The fourth proportional to 305,535.42, 458,302.32 and 172,355.22 is: 258,532.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,535.42 : 458,302.32 = 172,355.22 : x
  2. Step 2: Convert to fraction form
    305,535.42/458,302.32 = 172,355.22/x
  3. Step 3: Cross multiply
    305,535.42x = 458,302.32 × 172,355.22
  4. Step 4: Simplify right side
    305,535.42x = 78,990,797,190.11
  5. Step 5: Solve for x
    x = 78,990,797,190.11/305,535.42
  6. Step 6: Final answer
    x = 258,532.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.