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Finding the Fourth Proportional to 388,667.20, 583,079.16 and 164,027.87

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Solution

The fourth proportional to 388,667.20, 583,079.16 and 164,027.87 is: 246,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,667.20 : 583,079.16 = 164,027.87 : x
  2. Step 2: Convert to fraction form
    388,667.20/583,079.16 = 164,027.87/x
  3. Step 3: Cross multiply
    388,667.20x = 583,079.16 × 164,027.87
  4. Step 4: Simplify right side
    388,667.20x = 95,641,232,656.19
  5. Step 5: Solve for x
    x = 95,641,232,656.19/388,667.20
  6. Step 6: Final answer
    x = 246,074.87

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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.