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Finding the Fourth Proportional to 384,808.08, 531,025.96 and 215,075.02

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Solution

The fourth proportional to 384,808.08, 531,025.96 and 215,075.02 is: 296,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,808.08 : 531,025.96 = 215,075.02 : x
  2. Step 2: Convert to fraction form
    384,808.08/531,025.96 = 215,075.02/x
  3. Step 3: Cross multiply
    384,808.08x = 531,025.96 × 215,075.02
  4. Step 4: Simplify right side
    384,808.08x = 114,210,418,967.52
  5. Step 5: Solve for x
    x = 114,210,418,967.52/384,808.08
  6. Step 6: Final answer
    x = 296,798.39

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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.