Home / 317,101.05-437,619.71-209,482.42

Finding the Fourth Proportional to 317,101.05, 437,619.71 and 209,482.42

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Solution

The fourth proportional to 317,101.05, 437,619.71 and 209,482.42 is: 289,099.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,101.05 : 437,619.71 = 209,482.42 : x
  2. Step 2: Convert to fraction form
    317,101.05/437,619.71 = 209,482.42/x
  3. Step 3: Cross multiply
    317,101.05x = 437,619.71 × 209,482.42
  4. Step 4: Simplify right side
    317,101.05x = 91,673,635,890.50
  5. Step 5: Solve for x
    x = 91,673,635,890.50/317,101.05
  6. Step 6: Final answer
    x = 289,099.12

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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.