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Finding the Fourth Proportional to 201,638.03, 302,457.06 and 83,312.42

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Solution

The fourth proportional to 201,638.03, 302,457.06 and 83,312.42 is: 124,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,638.03 : 302,457.06 = 83,312.42 : x
  2. Step 2: Convert to fraction form
    201,638.03/302,457.06 = 83,312.42/x
  3. Step 3: Cross multiply
    201,638.03x = 302,457.06 × 83,312.42
  4. Step 4: Simplify right side
    201,638.03x = 25,198,429,614.69
  5. Step 5: Solve for x
    x = 25,198,429,614.69/201,638.03
  6. Step 6: Final answer
    x = 124,968.64

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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.