Home / 209,208.16-313,812.40-59,429.12

Finding the Fourth Proportional to 209,208.16, 313,812.40 and 59,429.12

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Solution

The fourth proportional to 209,208.16, 313,812.40 and 59,429.12 is: 89,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,208.16 : 313,812.40 = 59,429.12 : x
  2. Step 2: Convert to fraction form
    209,208.16/313,812.40 = 59,429.12/x
  3. Step 3: Cross multiply
    209,208.16x = 313,812.40 × 59,429.12
  4. Step 4: Simplify right side
    209,208.16x = 18,649,594,777.09
  5. Step 5: Solve for x
    x = 18,649,594,777.09/209,208.16
  6. Step 6: Final answer
    x = 89,143.73

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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.