Home / 381,769.04-526,847.60-209,702.91

Finding the Fourth Proportional to 381,769.04, 526,847.60 and 209,702.91

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Solution

The fourth proportional to 381,769.04, 526,847.60 and 209,702.91 is: 289,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,769.04 : 526,847.60 = 209,702.91 : x
  2. Step 2: Convert to fraction form
    381,769.04/526,847.60 = 209,702.91/x
  3. Step 3: Cross multiply
    381,769.04x = 526,847.60 × 209,702.91
  4. Step 4: Simplify right side
    381,769.04x = 110,481,473,798.00
  5. Step 5: Solve for x
    x = 110,481,473,798.00/381,769.04
  6. Step 6: Final answer
    x = 289,393.49

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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.