Home / 384,968.09-531,240.73-212,874.89

Finding the Fourth Proportional to 384,968.09, 531,240.73 and 212,874.89

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Solution

The fourth proportional to 384,968.09, 531,240.73 and 212,874.89 is: 293,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,968.09 : 531,240.73 = 212,874.89 : x
  2. Step 2: Convert to fraction form
    384,968.09/531,240.73 = 212,874.89/x
  3. Step 3: Cross multiply
    384,968.09x = 531,240.73 × 212,874.89
  4. Step 4: Simplify right side
    384,968.09x = 113,087,808,773.88
  5. Step 5: Solve for x
    x = 113,087,808,773.88/384,968.09
  6. Step 6: Final answer
    x = 293,758.91

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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.