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Finding the Fourth Proportional to 439,950.48, 607,128.12 and 238,746.48

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Solution

The fourth proportional to 439,950.48, 607,128.12 and 238,746.48 is: 329,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,950.48 : 607,128.12 = 238,746.48 : x
  2. Step 2: Convert to fraction form
    439,950.48/607,128.12 = 238,746.48/x
  3. Step 3: Cross multiply
    439,950.48x = 607,128.12 × 238,746.48
  4. Step 4: Simplify right side
    439,950.48x = 144,949,701,559.02
  5. Step 5: Solve for x
    x = 144,949,701,559.02/439,950.48
  6. Step 6: Final answer
    x = 329,468.22

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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.