Home / 345,394.36-476,517.78-209,330.14

Finding the Fourth Proportional to 345,394.36, 476,517.78 and 209,330.14

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Solution

The fourth proportional to 345,394.36, 476,517.78 and 209,330.14 is: 288,798.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,394.36 : 476,517.78 = 209,330.14 : x
  2. Step 2: Convert to fraction form
    345,394.36/476,517.78 = 209,330.14/x
  3. Step 3: Cross multiply
    345,394.36x = 476,517.78 × 209,330.14
  4. Step 4: Simplify right side
    345,394.36x = 99,749,533,599.89
  5. Step 5: Solve for x
    x = 99,749,533,599.89/345,394.36
  6. Step 6: Final answer
    x = 288,798.96

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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.