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Finding the Fourth Proportional to 201,503.40, 302,255.10 and 83,135.40

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Solution

The fourth proportional to 201,503.40, 302,255.10 and 83,135.40 is: 124,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,503.40 : 302,255.10 = 83,135.40 : x
  2. Step 2: Convert to fraction form
    201,503.40/302,255.10 = 83,135.40/x
  3. Step 3: Cross multiply
    201,503.40x = 302,255.10 × 83,135.40
  4. Step 4: Simplify right side
    201,503.40x = 25,128,098,640.54
  5. Step 5: Solve for x
    x = 25,128,098,640.54/201,503.40
  6. Step 6: Final answer
    x = 124,703.10

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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.