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Finding the Fourth Proportional to 401,110.80, 601,520.40 and 201,364.80

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Solution

The fourth proportional to 401,110.80, 601,520.40 and 201,364.80 is: 301,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,110.80 : 601,520.40 = 201,364.80 : x
  2. Step 2: Convert to fraction form
    401,110.80/601,520.40 = 201,364.80/x
  3. Step 3: Cross multiply
    401,110.80x = 601,520.40 × 201,364.80
  4. Step 4: Simplify right side
    401,110.80x = 121,125,035,041.92
  5. Step 5: Solve for x
    x = 121,125,035,041.92/401,110.80
  6. Step 6: Final answer
    x = 301,974.01

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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.