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Finding the Fourth Proportional to 317,909.80, 438,714.66 and 174,673

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Solution

The fourth proportional to 317,909.80, 438,714.66 and 174,673 is: 241,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,909.80 : 438,714.66 = 174,673 : x
  2. Step 2: Convert to fraction form
    317,909.80/438,714.66 = 174,673/x
  3. Step 3: Cross multiply
    317,909.80x = 438,714.66 × 174,673
  4. Step 4: Simplify right side
    317,909.80x = 76,631,605,806.18
  5. Step 5: Solve for x
    x = 76,631,605,806.18/317,909.80
  6. Step 6: Final answer
    x = 241,048.27

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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.