Home / 372,438.84-513,976.32-202,683.72

Finding the Fourth Proportional to 372,438.84, 513,976.32 and 202,683.72

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Solution

The fourth proportional to 372,438.84, 513,976.32 and 202,683.72 is: 279,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,438.84 : 513,976.32 = 202,683.72 : x
  2. Step 2: Convert to fraction form
    372,438.84/513,976.32 = 202,683.72/x
  3. Step 3: Cross multiply
    372,438.84x = 513,976.32 × 202,683.72
  4. Step 4: Simplify right side
    372,438.84x = 104,174,632,529.51
  5. Step 5: Solve for x
    x = 104,174,632,529.51/372,438.84
  6. Step 6: Final answer
    x = 279,709.37

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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.