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Finding the Fourth Proportional to 255,143.52, 352,111.86 and 141,968.70

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Solution

The fourth proportional to 255,143.52, 352,111.86 and 141,968.70 is: 195,924.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,143.52 : 352,111.86 = 141,968.70 : x
  2. Step 2: Convert to fraction form
    255,143.52/352,111.86 = 141,968.70/x
  3. Step 3: Cross multiply
    255,143.52x = 352,111.86 × 141,968.70
  4. Step 4: Simplify right side
    255,143.52x = 49,988,863,018.78
  5. Step 5: Solve for x
    x = 49,988,863,018.78/255,143.52
  6. Step 6: Final answer
    x = 195,924.49

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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.