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Finding the Fourth Proportional to 401,099.80, 601,503.90 and 201,353.80

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Solution

The fourth proportional to 401,099.80, 601,503.90 and 201,353.80 is: 301,957.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,099.80 : 601,503.90 = 201,353.80 : x
  2. Step 2: Convert to fraction form
    401,099.80/601,503.90 = 201,353.80/x
  3. Step 3: Cross multiply
    401,099.80x = 601,503.90 × 201,353.80
  4. Step 4: Simplify right side
    401,099.80x = 121,115,095,979.82
  5. Step 5: Solve for x
    x = 121,115,095,979.82/401,099.80
  6. Step 6: Final answer
    x = 301,957.51

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1.5x scale

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.