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Finding the Fourth Proportional to 380,563.96, 525,195.57 and 210,798.07

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Solution

The fourth proportional to 380,563.96, 525,195.57 and 210,798.07 is: 290,910.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,563.96 : 525,195.57 = 210,798.07 : x
  2. Step 2: Convert to fraction form
    380,563.96/525,195.57 = 210,798.07/x
  3. Step 3: Cross multiply
    380,563.96x = 525,195.57 × 210,798.07
  4. Step 4: Simplify right side
    380,563.96x = 110,710,212,528.55
  5. Step 5: Solve for x
    x = 110,710,212,528.55/380,563.96
  6. Step 6: Final answer
    x = 290,910.92

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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.