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Finding the Fourth Proportional to 236,492.82, 326,358 and 129,059.28

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Solution

The fourth proportional to 236,492.82, 326,358 and 129,059.28 is: 178,100.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,492.82 : 326,358 = 129,059.28 : x
  2. Step 2: Convert to fraction form
    236,492.82/326,358 = 129,059.28/x
  3. Step 3: Cross multiply
    236,492.82x = 326,358 × 129,059.28
  4. Step 4: Simplify right side
    236,492.82x = 42,119,528,502.24
  5. Step 5: Solve for x
    x = 42,119,528,502.24/236,492.82
  6. Step 6: Final answer
    x = 178,100.66

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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.