Home / 379,048.83-523,091.30-209,282.55

Finding the Fourth Proportional to 379,048.83, 523,091.30 and 209,282.55

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Solution

The fourth proportional to 379,048.83, 523,091.30 and 209,282.55 is: 288,812.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,048.83 : 523,091.30 = 209,282.55 : x
  2. Step 2: Convert to fraction form
    379,048.83/523,091.30 = 209,282.55/x
  3. Step 3: Cross multiply
    379,048.83x = 523,091.30 × 209,282.55
  4. Step 4: Simplify right side
    379,048.83x = 109,473,880,100.40
  5. Step 5: Solve for x
    x = 109,473,880,100.40/379,048.83
  6. Step 6: Final answer
    x = 288,812.08

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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.