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Finding the Fourth Proportional to 199,281.01, 275,084.55 and 145,989.28

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Solution

The fourth proportional to 199,281.01, 275,084.55 and 145,989.28 is: 201,521.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,281.01 : 275,084.55 = 145,989.28 : x
  2. Step 2: Convert to fraction form
    199,281.01/275,084.55 = 145,989.28/x
  3. Step 3: Cross multiply
    199,281.01x = 275,084.55 × 145,989.28
  4. Step 4: Simplify right side
    199,281.01x = 40,159,395,393.62
  5. Step 5: Solve for x
    x = 40,159,395,393.62/199,281.01
  6. Step 6: Final answer
    x = 201,521.44

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1.5x scale

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.