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Finding the Fourth Proportional to 236,776.64, 326,747.64 and 129,343.91

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Solution

The fourth proportional to 236,776.64, 326,747.64 and 129,343.91 is: 178,492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,776.64 : 326,747.64 = 129,343.91 : x
  2. Step 2: Convert to fraction form
    236,776.64/326,747.64 = 129,343.91/x
  3. Step 3: Cross multiply
    236,776.64x = 326,747.64 × 129,343.91
  4. Step 4: Simplify right side
    236,776.64x = 42,262,817,340.87
  5. Step 5: Solve for x
    x = 42,262,817,340.87/236,776.64
  6. Step 6: Final answer
    x = 178,492.34

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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.