Home / 317,460.29-438,114.90-209,843.69

Finding the Fourth Proportional to 317,460.29, 438,114.90 and 209,843.69

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Solution

The fourth proportional to 317,460.29, 438,114.90 and 209,843.69 is: 289,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,460.29 : 438,114.90 = 209,843.69 : x
  2. Step 2: Convert to fraction form
    317,460.29/438,114.90 = 209,843.69/x
  3. Step 3: Cross multiply
    317,460.29x = 438,114.90 × 209,843.69
  4. Step 4: Simplify right side
    317,460.29x = 91,935,647,259.98
  5. Step 5: Solve for x
    x = 91,935,647,259.98/317,460.29
  6. Step 6: Final answer
    x = 289,597.31

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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.