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Finding the Fourth Proportional to 388,740.92, 583,109.04 and 100,552.58

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Solution

The fourth proportional to 388,740.92, 583,109.04 and 100,552.58 is: 150,828.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,740.92 : 583,109.04 = 100,552.58 : x
  2. Step 2: Convert to fraction form
    388,740.92/583,109.04 = 100,552.58/x
  3. Step 3: Cross multiply
    388,740.92x = 583,109.04 × 100,552.58
  4. Step 4: Simplify right side
    388,740.92x = 58,633,118,393.32
  5. Step 5: Solve for x
    x = 58,633,118,393.32/388,740.92
  6. Step 6: Final answer
    x = 150,828.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.