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Finding the Fourth Proportional to 388,720.12, 536,250.48 and 227,476.32

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Solution

The fourth proportional to 388,720.12, 536,250.48 and 227,476.32 is: 313,810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,720.12 : 536,250.48 = 227,476.32 : x
  2. Step 2: Convert to fraction form
    388,720.12/536,250.48 = 227,476.32/x
  3. Step 3: Cross multiply
    388,720.12x = 536,250.48 × 227,476.32
  4. Step 4: Simplify right side
    388,720.12x = 121,984,285,788.63
  5. Step 5: Solve for x
    x = 121,984,285,788.63/388,720.12
  6. Step 6: Final answer
    x = 313,810.06

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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.