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Finding the Fourth Proportional to 317,017.80, 437,481 and 173,777.40

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Solution

The fourth proportional to 317,017.80, 437,481 and 173,777.40 is: 239,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,017.80 : 437,481 = 173,777.40 : x
  2. Step 2: Convert to fraction form
    317,017.80/437,481 = 173,777.40/x
  3. Step 3: Cross multiply
    317,017.80x = 437,481 × 173,777.40
  4. Step 4: Simplify right side
    317,017.80x = 76,024,310,729.40
  5. Step 5: Solve for x
    x = 76,024,310,729.40/317,017.80
  6. Step 6: Final answer
    x = 239,810.86

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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.