Home / 212,082.09-317,430.80-155,907.33

Finding the Fourth Proportional to 212,082.09, 317,430.80 and 155,907.33

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Solution

The fourth proportional to 212,082.09, 317,430.80 and 155,907.33 is: 233,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,082.09 : 317,430.80 = 155,907.33 : x
  2. Step 2: Convert to fraction form
    212,082.09/317,430.80 = 155,907.33/x
  3. Step 3: Cross multiply
    212,082.09x = 317,430.80 × 155,907.33
  4. Step 4: Simplify right side
    212,082.09x = 49,489,788,891.57
  5. Step 5: Solve for x
    x = 49,489,788,891.57/212,082.09
  6. Step 6: Final answer
    x = 233,352.04

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1.5x scale

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.