Home / 388,092.22-581,445.74-210,485.94

Finding the Fourth Proportional to 388,092.22, 581,445.74 and 210,485.94

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Solution

The fourth proportional to 388,092.22, 581,445.74 and 210,485.94 is: 315,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,092.22 : 581,445.74 = 210,485.94 : x
  2. Step 2: Convert to fraction form
    388,092.22/581,445.74 = 210,485.94/x
  3. Step 3: Cross multiply
    388,092.22x = 581,445.74 × 210,485.94
  4. Step 4: Simplify right side
    388,092.22x = 122,386,153,142.90
  5. Step 5: Solve for x
    x = 122,386,153,142.90/388,092.22
  6. Step 6: Final answer
    x = 315,353.28

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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.