Home / 380,747.80-525,431.92-210,981.93

Finding the Fourth Proportional to 380,747.80, 525,431.92 and 210,981.93

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Solution

The fourth proportional to 380,747.80, 525,431.92 and 210,981.93 is: 291,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,747.80 : 525,431.92 = 210,981.93 : x
  2. Step 2: Convert to fraction form
    380,747.80/525,431.92 = 210,981.93/x
  3. Step 3: Cross multiply
    380,747.80x = 525,431.92 × 210,981.93
  4. Step 4: Simplify right side
    380,747.80x = 110,856,640,565.21
  5. Step 5: Solve for x
    x = 110,856,640,565.21/380,747.80
  6. Step 6: Final answer
    x = 291,155.04

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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.