Home / 389,841.46-537,985.71-228,699.25

Finding the Fourth Proportional to 389,841.46, 537,985.71 and 228,699.25

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Solution

The fourth proportional to 389,841.46, 537,985.71 and 228,699.25 is: 315,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,841.46 : 537,985.71 = 228,699.25 : x
  2. Step 2: Convert to fraction form
    389,841.46/537,985.71 = 228,699.25/x
  3. Step 3: Cross multiply
    389,841.46x = 537,985.71 × 228,699.25
  4. Step 4: Simplify right side
    389,841.46x = 123,036,927,042.75
  5. Step 5: Solve for x
    x = 123,036,927,042.75/389,841.46
  6. Step 6: Final answer
    x = 315,607.60

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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.