Home / 389,372.10-537,448.42-228,262.02

Finding the Fourth Proportional to 389,372.10, 537,448.42 and 228,262.02

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Solution

The fourth proportional to 389,372.10, 537,448.42 and 228,262.02 is: 315,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,372.10 : 537,448.42 = 228,262.02 : x
  2. Step 2: Convert to fraction form
    389,372.10/537,448.42 = 228,262.02/x
  3. Step 3: Cross multiply
    389,372.10x = 537,448.42 × 228,262.02
  4. Step 4: Simplify right side
    389,372.10x = 122,679,061,995.01
  5. Step 5: Solve for x
    x = 122,679,061,995.01/389,372.10
  6. Step 6: Final answer
    x = 315,068.96

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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.