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Finding the Fourth Proportional to 388,432.84, 536,064.27 and 235,477.48

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Solution

The fourth proportional to 388,432.84, 536,064.27 and 235,477.48 is: 324,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,432.84 : 536,064.27 = 235,477.48 : x
  2. Step 2: Convert to fraction form
    388,432.84/536,064.27 = 235,477.48/x
  3. Step 3: Cross multiply
    388,432.84x = 536,064.27 × 235,477.48
  4. Step 4: Simplify right side
    388,432.84x = 126,231,063,417.64
  5. Step 5: Solve for x
    x = 126,231,063,417.64/388,432.84
  6. Step 6: Final answer
    x = 324,975.26

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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.