Home / 380,690.18-525,360.68-208,620.66

Finding the Fourth Proportional to 380,690.18, 525,360.68 and 208,620.66

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Solution

The fourth proportional to 380,690.18, 525,360.68 and 208,620.66 is: 287,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,690.18 : 525,360.68 = 208,620.66 : x
  2. Step 2: Convert to fraction form
    380,690.18/525,360.68 = 208,620.66/x
  3. Step 3: Cross multiply
    380,690.18x = 525,360.68 × 208,620.66
  4. Step 4: Simplify right side
    380,690.18x = 109,601,094,682.47
  5. Step 5: Solve for x
    x = 109,601,094,682.47/380,690.18
  6. Step 6: Final answer
    x = 287,901.03

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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.