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Finding the Fourth Proportional to 255,051.19, 351,973.34 and 140,331.34

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Solution

The fourth proportional to 255,051.19, 351,973.34 and 140,331.34 is: 193,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,051.19 : 351,973.34 = 140,331.34 : x
  2. Step 2: Convert to fraction form
    255,051.19/351,973.34 = 140,331.34/x
  3. Step 3: Cross multiply
    255,051.19x = 351,973.34 × 140,331.34
  4. Step 4: Simplify right side
    255,051.19x = 49,392,890,446.48
  5. Step 5: Solve for x
    x = 49,392,890,446.48/255,051.19
  6. Step 6: Final answer
    x = 193,658.73

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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.