Home / 380,809.45-525,448.05-244,812.21

Finding the Fourth Proportional to 380,809.45, 525,448.05 and 244,812.21

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Solution

The fourth proportional to 380,809.45, 525,448.05 and 244,812.21 is: 337,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,809.45 : 525,448.05 = 244,812.21 : x
  2. Step 2: Convert to fraction form
    380,809.45/525,448.05 = 244,812.21/x
  3. Step 3: Cross multiply
    380,809.45x = 525,448.05 × 244,812.21
  4. Step 4: Simplify right side
    380,809.45x = 128,636,095,472.22
  5. Step 5: Solve for x
    x = 128,636,095,472.22/380,809.45
  6. Step 6: Final answer
    x = 337,796.49

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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.