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Finding the Fourth Proportional to 242,778.03, 335,051.42 and 140,838.32

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Solution

The fourth proportional to 242,778.03, 335,051.42 and 140,838.32 is: 194,367.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,778.03 : 335,051.42 = 140,838.32 : x
  2. Step 2: Convert to fraction form
    242,778.03/335,051.42 = 140,838.32/x
  3. Step 3: Cross multiply
    242,778.03x = 335,051.42 × 140,838.32
  4. Step 4: Simplify right side
    242,778.03x = 47,188,076,726.97
  5. Step 5: Solve for x
    x = 47,188,076,726.97/242,778.03
  6. Step 6: Final answer
    x = 194,367.16

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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.