Home / 388,972.42-583,458.72-122,753.68

Finding the Fourth Proportional to 388,972.42, 583,458.72 and 122,753.68

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Solution

The fourth proportional to 388,972.42, 583,458.72 and 122,753.68 is: 184,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,972.42 : 583,458.72 = 122,753.68 : x
  2. Step 2: Convert to fraction form
    388,972.42/583,458.72 = 122,753.68/x
  3. Step 3: Cross multiply
    388,972.42x = 583,458.72 × 122,753.68
  4. Step 4: Simplify right side
    388,972.42x = 71,621,705,008.09
  5. Step 5: Solve for x
    x = 71,621,705,008.09/388,972.42
  6. Step 6: Final answer
    x = 184,130.55

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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.