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Finding the Fourth Proportional to 389,362.85, 537,319.73 and 217,278.98

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Solution

The fourth proportional to 389,362.85, 537,319.73 and 217,278.98 is: 299,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,362.85 : 537,319.73 = 217,278.98 : x
  2. Step 2: Convert to fraction form
    389,362.85/537,319.73 = 217,278.98/x
  3. Step 3: Cross multiply
    389,362.85x = 537,319.73 × 217,278.98
  4. Step 4: Simplify right side
    389,362.85x = 116,748,284,754.77
  5. Step 5: Solve for x
    x = 116,748,284,754.77/389,362.85
  6. Step 6: Final answer
    x = 299,844.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.