Home / 317,927.40-476,889.21-81,269.70

Finding the Fourth Proportional to 317,927.40, 476,889.21 and 81,269.70

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Solution

The fourth proportional to 317,927.40, 476,889.21 and 81,269.70 is: 121,904.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,927.40 : 476,889.21 = 81,269.70 : x
  2. Step 2: Convert to fraction form
    317,927.40/476,889.21 = 81,269.70/x
  3. Step 3: Cross multiply
    317,927.40x = 476,889.21 × 81,269.70
  4. Step 4: Simplify right side
    317,927.40x = 38,756,643,029.94
  5. Step 5: Solve for x
    x = 38,756,643,029.94/317,927.40
  6. Step 6: Final answer
    x = 121,904.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.