Home / 388,051.20-581,376.30-163,008.90

Finding the Fourth Proportional to 388,051.20, 581,376.30 and 163,008.90

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Solution

The fourth proportional to 388,051.20, 581,376.30 and 163,008.90 is: 244,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,051.20 : 581,376.30 = 163,008.90 : x
  2. Step 2: Convert to fraction form
    388,051.20/581,376.30 = 163,008.90/x
  3. Step 3: Cross multiply
    388,051.20x = 581,376.30 × 163,008.90
  4. Step 4: Simplify right side
    388,051.20x = 94,769,511,149.07
  5. Step 5: Solve for x
    x = 94,769,511,149.07/388,051.20
  6. Step 6: Final answer
    x = 244,219.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.