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Finding the Fourth Proportional to 389,375.82, 537,237.09 and 228,144.24

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Solution

The fourth proportional to 389,375.82, 537,237.09 and 228,144.24 is: 314,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,375.82 : 537,237.09 = 228,144.24 : x
  2. Step 2: Convert to fraction form
    389,375.82/537,237.09 = 228,144.24/x
  3. Step 3: Cross multiply
    389,375.82x = 537,237.09 × 228,144.24
  4. Step 4: Simplify right side
    389,375.82x = 122,567,547,597.86
  5. Step 5: Solve for x
    x = 122,567,547,597.86/389,375.82
  6. Step 6: Final answer
    x = 314,779.56

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1.5x scale

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.