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Finding the Fourth Proportional to 401,452.80, 601,653.60 and 201,998.40

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Solution

The fourth proportional to 401,452.80, 601,653.60 and 201,998.40 is: 302,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,452.80 : 601,653.60 = 201,998.40 : x
  2. Step 2: Convert to fraction form
    401,452.80/601,653.60 = 201,998.40/x
  3. Step 3: Cross multiply
    401,452.80x = 601,653.60 × 201,998.40
  4. Step 4: Simplify right side
    401,452.80x = 121,533,064,554.24
  5. Step 5: Solve for x
    x = 121,533,064,554.24/401,452.80
  6. Step 6: Final answer
    x = 302,733.13

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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.