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Finding the Fourth Proportional to 439,539.84, 606,565.32 and 238,335.84

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Solution

The fourth proportional to 439,539.84, 606,565.32 and 238,335.84 is: 328,903.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,539.84 : 606,565.32 = 238,335.84 : x
  2. Step 2: Convert to fraction form
    439,539.84/606,565.32 = 238,335.84/x
  3. Step 3: Cross multiply
    439,539.84x = 606,565.32 × 238,335.84
  4. Step 4: Simplify right side
    439,539.84x = 144,566,255,057.07
  5. Step 5: Solve for x
    x = 144,566,255,057.07/439,539.84
  6. Step 6: Final answer
    x = 328,903.64

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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.