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Finding the Fourth Proportional to 384,458.46, 530,567.68 and 212,385.30

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Solution

The fourth proportional to 384,458.46, 530,567.68 and 212,385.30 is: 293,100.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,458.46 : 530,567.68 = 212,385.30 : x
  2. Step 2: Convert to fraction form
    384,458.46/530,567.68 = 212,385.30/x
  3. Step 3: Cross multiply
    384,458.46x = 530,567.68 × 212,385.30
  4. Step 4: Simplify right side
    384,458.46x = 112,684,775,887.10
  5. Step 5: Solve for x
    x = 112,684,775,887.10/384,458.46
  6. Step 6: Final answer
    x = 293,100.00

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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.