Home / 313,515.48-470,125.06-121,479.86

Finding the Fourth Proportional to 313,515.48, 470,125.06 and 121,479.86

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Solution

The fourth proportional to 313,515.48, 470,125.06 and 121,479.86 is: 182,162.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,515.48 : 470,125.06 = 121,479.86 : x
  2. Step 2: Convert to fraction form
    313,515.48/470,125.06 = 121,479.86/x
  3. Step 3: Cross multiply
    313,515.48x = 470,125.06 × 121,479.86
  4. Step 4: Simplify right side
    313,515.48x = 57,110,726,471.29
  5. Step 5: Solve for x
    x = 57,110,726,471.29/313,515.48
  6. Step 6: Final answer
    x = 182,162.38

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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.