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Finding the Fourth Proportional to 388,801.80, 583,202.70 and 164,415.60

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Solution

The fourth proportional to 388,801.80, 583,202.70 and 164,415.60 is: 246,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,801.80 : 583,202.70 = 164,415.60 : x
  2. Step 2: Convert to fraction form
    388,801.80/583,202.70 = 164,415.60/x
  3. Step 3: Cross multiply
    388,801.80x = 583,202.70 × 164,415.60
  4. Step 4: Simplify right side
    388,801.80x = 95,887,621,842.12
  5. Step 5: Solve for x
    x = 95,887,621,842.12/388,801.80
  6. Step 6: Final answer
    x = 246,623.40

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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.