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Finding the Fourth Proportional to 439,790.96, 606,878.08 and 248,816.68

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Solution

The fourth proportional to 439,790.96, 606,878.08 and 248,816.68 is: 343,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,790.96 : 606,878.08 = 248,816.68 : x
  2. Step 2: Convert to fraction form
    439,790.96/606,878.08 = 248,816.68/x
  3. Step 3: Cross multiply
    439,790.96x = 606,878.08 × 248,816.68
  4. Step 4: Simplify right side
    439,790.96x = 151,001,389,030.37
  5. Step 5: Solve for x
    x = 151,001,389,030.37/439,790.96
  6. Step 6: Final answer
    x = 343,348.10

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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.