Home / 388,710.12-536,236.68-227,466.30

Finding the Fourth Proportional to 388,710.12, 536,236.68 and 227,466.30

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Solution

The fourth proportional to 388,710.12, 536,236.68 and 227,466.30 is: 313,796.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,710.12 : 536,236.68 = 227,466.30 : x
  2. Step 2: Convert to fraction form
    388,710.12/536,236.68 = 227,466.30/x
  3. Step 3: Cross multiply
    388,710.12x = 536,236.68 × 227,466.30
  4. Step 4: Simplify right side
    388,710.12x = 121,975,773,523.88
  5. Step 5: Solve for x
    x = 121,975,773,523.88/388,710.12
  6. Step 6: Final answer
    x = 313,796.24

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1.5x scale

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.