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Finding the Fourth Proportional to 382,907.29, 528,403.30 and 239,746.27

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Solution

The fourth proportional to 382,907.29, 528,403.30 and 239,746.27 is: 330,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,907.29 : 528,403.30 = 239,746.27 : x
  2. Step 2: Convert to fraction form
    382,907.29/528,403.30 = 239,746.27/x
  3. Step 3: Cross multiply
    382,907.29x = 528,403.30 × 239,746.27
  4. Step 4: Simplify right side
    382,907.29x = 126,682,718,310.32
  5. Step 5: Solve for x
    x = 126,682,718,310.32/382,907.29
  6. Step 6: Final answer
    x = 330,844.36

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1.5x scale

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.