Home / 315,800.48-435,835.14-172,582.22

Finding the Fourth Proportional to 315,800.48, 435,835.14 and 172,582.22

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Solution

The fourth proportional to 315,800.48, 435,835.14 and 172,582.22 is: 238,180.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,800.48 : 435,835.14 = 172,582.22 : x
  2. Step 2: Convert to fraction form
    315,800.48/435,835.14 = 172,582.22/x
  3. Step 3: Cross multiply
    315,800.48x = 435,835.14 × 172,582.22
  4. Step 4: Simplify right side
    315,800.48x = 75,217,396,015.21
  5. Step 5: Solve for x
    x = 75,217,396,015.21/315,800.48
  6. Step 6: Final answer
    x = 238,180.12

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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.