Home / 345,127.84-476,298.03-209,173.66

Finding the Fourth Proportional to 345,127.84, 476,298.03 and 209,173.66

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Solution

The fourth proportional to 345,127.84, 476,298.03 and 209,173.66 is: 288,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,127.84 : 476,298.03 = 209,173.66 : x
  2. Step 2: Convert to fraction form
    345,127.84/476,298.03 = 209,173.66/x
  3. Step 3: Cross multiply
    345,127.84x = 476,298.03 × 209,173.66
  4. Step 4: Simplify right side
    345,127.84x = 99,629,002,185.89
  5. Step 5: Solve for x
    x = 99,629,002,185.89/345,127.84
  6. Step 6: Final answer
    x = 288,672.75

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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.