Home / 379,072.71-523,106.55-209,303.19

Finding the Fourth Proportional to 379,072.71, 523,106.55 and 209,303.19

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Solution

The fourth proportional to 379,072.71, 523,106.55 and 209,303.19 is: 288,830.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,072.71 : 523,106.55 = 209,303.19 : x
  2. Step 2: Convert to fraction form
    379,072.71/523,106.55 = 209,303.19/x
  3. Step 3: Cross multiply
    379,072.71x = 523,106.55 × 209,303.19
  4. Step 4: Simplify right side
    379,072.71x = 109,487,869,624.90
  5. Step 5: Solve for x
    x = 109,487,869,624.90/379,072.71
  6. Step 6: Final answer
    x = 288,830.79

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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.