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Finding the Fourth Proportional to 439,730.88, 606,831.84 and 238,528.32

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Solution

The fourth proportional to 439,730.88, 606,831.84 and 238,528.32 is: 329,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,730.88 : 606,831.84 = 238,528.32 : x
  2. Step 2: Convert to fraction form
    439,730.88/606,831.84 = 238,528.32/x
  3. Step 3: Cross multiply
    439,730.88x = 606,831.84 × 238,528.32
  4. Step 4: Simplify right side
    439,730.88x = 144,746,579,317.71
  5. Step 5: Solve for x
    x = 144,746,579,317.71/439,730.88
  6. Step 6: Final answer
    x = 329,170.83

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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.