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Finding the Fourth Proportional to 342,417.20, 513,625.80 and 202,103.60

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Solution

The fourth proportional to 342,417.20, 513,625.80 and 202,103.60 is: 303,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,417.20 : 513,625.80 = 202,103.60 : x
  2. Step 2: Convert to fraction form
    342,417.20/513,625.80 = 202,103.60/x
  3. Step 3: Cross multiply
    342,417.20x = 513,625.80 × 202,103.60
  4. Step 4: Simplify right side
    342,417.20x = 103,805,623,232.88
  5. Step 5: Solve for x
    x = 103,805,623,232.88/342,417.20
  6. Step 6: Final answer
    x = 303,155.40

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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.