Home / 384,830.98-531,090.33-215,078.66

Finding the Fourth Proportional to 384,830.98, 531,090.33 and 215,078.66

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Solution

The fourth proportional to 384,830.98, 531,090.33 and 215,078.66 is: 296,821.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,830.98 : 531,090.33 = 215,078.66 : x
  2. Step 2: Convert to fraction form
    384,830.98/531,090.33 = 215,078.66/x
  3. Step 3: Cross multiply
    384,830.98x = 531,090.33 × 215,078.66
  4. Step 4: Simplify right side
    384,830.98x = 114,226,196,515.36
  5. Step 5: Solve for x
    x = 114,226,196,515.36/384,830.98
  6. Step 6: Final answer
    x = 296,821.73

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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.