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Finding the Fourth Proportional to 250,378.90, 345,537.90 and 153,593.65

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Solution

The fourth proportional to 250,378.90, 345,537.90 and 153,593.65 is: 211,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,378.90 : 345,537.90 = 153,593.65 : x
  2. Step 2: Convert to fraction form
    250,378.90/345,537.90 = 153,593.65/x
  3. Step 3: Cross multiply
    250,378.90x = 345,537.90 × 153,593.65
  4. Step 4: Simplify right side
    250,378.90x = 53,072,427,706.26
  5. Step 5: Solve for x
    x = 53,072,427,706.26/250,378.90
  6. Step 6: Final answer
    x = 211,968.45

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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.