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Finding the Fourth Proportional to 439,646.54, 606,713.29 and 238,442.54

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Solution

The fourth proportional to 439,646.54, 606,713.29 and 238,442.54 is: 329,051.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,646.54 : 606,713.29 = 238,442.54 : x
  2. Step 2: Convert to fraction form
    439,646.54/606,713.29 = 238,442.54/x
  3. Step 3: Cross multiply
    439,646.54x = 606,713.29 × 238,442.54
  4. Step 4: Simplify right side
    439,646.54x = 144,666,254,289.68
  5. Step 5: Solve for x
    x = 144,666,254,289.68/439,646.54
  6. Step 6: Final answer
    x = 329,051.28

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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.