Home / 388,091.22-581,444.24-210,484.94

Finding the Fourth Proportional to 388,091.22, 581,444.24 and 210,484.94

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Solution

The fourth proportional to 388,091.22, 581,444.24 and 210,484.94 is: 315,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,091.22 : 581,444.24 = 210,484.94 : x
  2. Step 2: Convert to fraction form
    388,091.22/581,444.24 = 210,484.94/x
  3. Step 3: Cross multiply
    388,091.22x = 581,444.24 × 210,484.94
  4. Step 4: Simplify right side
    388,091.22x = 122,385,255,969.75
  5. Step 5: Solve for x
    x = 122,385,255,969.75/388,091.22
  6. Step 6: Final answer
    x = 315,351.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.