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Finding the Fourth Proportional to 380,551.97, 525,119.33 and 210,743.57

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Solution

The fourth proportional to 380,551.97, 525,119.33 and 210,743.57 is: 290,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,551.97 : 525,119.33 = 210,743.57 : x
  2. Step 2: Convert to fraction form
    380,551.97/525,119.33 = 210,743.57/x
  3. Step 3: Cross multiply
    380,551.97x = 525,119.33 × 210,743.57
  4. Step 4: Simplify right side
    380,551.97x = 110,665,518,600.89
  5. Step 5: Solve for x
    x = 110,665,518,600.89/380,551.97
  6. Step 6: Final answer
    x = 290,802.65

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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.