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Finding the Fourth Proportional to 253,644.62, 349,979.54 and 144,746.60

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Solution

The fourth proportional to 253,644.62, 349,979.54 and 144,746.60 is: 199,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,644.62 : 349,979.54 = 144,746.60 : x
  2. Step 2: Convert to fraction form
    253,644.62/349,979.54 = 144,746.60/x
  3. Step 3: Cross multiply
    253,644.62x = 349,979.54 × 144,746.60
  4. Step 4: Simplify right side
    253,644.62x = 50,658,346,010.93
  5. Step 5: Solve for x
    x = 50,658,346,010.93/253,644.62
  6. Step 6: Final answer
    x = 199,721.75

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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.