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Finding the Fourth Proportional to 288,373, 397,927.36 and 167,511

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Solution

The fourth proportional to 288,373, 397,927.36 and 167,511 is: 231,149.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,373 : 397,927.36 = 167,511 : x
  2. Step 2: Convert to fraction form
    288,373/397,927.36 = 167,511/x
  3. Step 3: Cross multiply
    288,373x = 397,927.36 × 167,511
  4. Step 4: Simplify right side
    288,373x = 66,657,210,000.96
  5. Step 5: Solve for x
    x = 66,657,210,000.96/288,373
  6. Step 6: Final answer
    x = 231,149.28

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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.