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Finding the Fourth Proportional to 388,873.51, 536,588.09 and 225,523.04

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Solution

The fourth proportional to 388,873.51, 536,588.09 and 225,523.04 is: 311,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,873.51 : 536,588.09 = 225,523.04 : x
  2. Step 2: Convert to fraction form
    388,873.51/536,588.09 = 225,523.04/x
  3. Step 3: Cross multiply
    388,873.51x = 536,588.09 × 225,523.04
  4. Step 4: Simplify right side
    388,873.51x = 121,012,975,588.32
  5. Step 5: Solve for x
    x = 121,012,975,588.32/388,873.51
  6. Step 6: Final answer
    x = 311,188.53

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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.