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Finding the Fourth Proportional to 402,885.26, 556,126.27 and 239,541.37

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Solution

The fourth proportional to 402,885.26, 556,126.27 and 239,541.37 is: 330,653.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,885.26 : 556,126.27 = 239,541.37 : x
  2. Step 2: Convert to fraction form
    402,885.26/556,126.27 = 239,541.37/x
  3. Step 3: Cross multiply
    402,885.26x = 556,126.27 × 239,541.37
  4. Step 4: Simplify right side
    402,885.26x = 133,215,246,619.62
  5. Step 5: Solve for x
    x = 133,215,246,619.62/402,885.26
  6. Step 6: Final answer
    x = 330,653.07

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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.