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Finding the Fourth Proportional to 381,348.64, 526,259.67 and 209,269.45

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Solution

The fourth proportional to 381,348.64, 526,259.67 and 209,269.45 is: 288,791.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,348.64 : 526,259.67 = 209,269.45 : x
  2. Step 2: Convert to fraction form
    381,348.64/526,259.67 = 209,269.45/x
  3. Step 3: Cross multiply
    381,348.64x = 526,259.67 × 209,269.45
  4. Step 4: Simplify right side
    381,348.64x = 110,130,071,698.08
  5. Step 5: Solve for x
    x = 110,130,071,698.08/381,348.64
  6. Step 6: Final answer
    x = 288,791.04

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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.