Home / 388,968.66-536,043.96-281,356.20

Finding the Fourth Proportional to 388,968.66, 536,043.96 and 281,356.20

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Solution

The fourth proportional to 388,968.66, 536,043.96 and 281,356.20 is: 387,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,968.66 : 536,043.96 = 281,356.20 : x
  2. Step 2: Convert to fraction form
    388,968.66/536,043.96 = 281,356.20/x
  3. Step 3: Cross multiply
    388,968.66x = 536,043.96 × 281,356.20
  4. Step 4: Simplify right side
    388,968.66x = 150,819,291,618.55
  5. Step 5: Solve for x
    x = 150,819,291,618.55/388,968.66
  6. Step 6: Final answer
    x = 387,741.50

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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.