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Finding the Fourth Proportional to 388,704.27, 536,430.16 and 227,611.22

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Solution

The fourth proportional to 388,704.27, 536,430.16 and 227,611.22 is: 314,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,704.27 : 536,430.16 = 227,611.22 : x
  2. Step 2: Convert to fraction form
    388,704.27/536,430.16 = 227,611.22/x
  3. Step 3: Cross multiply
    388,704.27x = 536,430.16 × 227,611.22
  4. Step 4: Simplify right side
    388,704.27x = 122,097,523,162.40
  5. Step 5: Solve for x
    x = 122,097,523,162.40/388,704.27
  6. Step 6: Final answer
    x = 314,114.18

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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.