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Finding the Fourth Proportional to 255,671.61, 352,838.84 and 142,495.17

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Solution

The fourth proportional to 255,671.61, 352,838.84 and 142,495.17 is: 196,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,671.61 : 352,838.84 = 142,495.17 : x
  2. Step 2: Convert to fraction form
    255,671.61/352,838.84 = 142,495.17/x
  3. Step 3: Cross multiply
    255,671.61x = 352,838.84 × 142,495.17
  4. Step 4: Simplify right side
    255,671.61x = 50,277,829,775.93
  5. Step 5: Solve for x
    x = 50,277,829,775.93/255,671.61
  6. Step 6: Final answer
    x = 196,650.03

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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.