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Finding the Fourth Proportional to 342,402.40, 513,603.60 and 89,682.40

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Solution

The fourth proportional to 342,402.40, 513,603.60 and 89,682.40 is: 134,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,402.40 : 513,603.60 = 89,682.40 : x
  2. Step 2: Convert to fraction form
    342,402.40/513,603.60 = 89,682.40/x
  3. Step 3: Cross multiply
    342,402.40x = 513,603.60 × 89,682.40
  4. Step 4: Simplify right side
    342,402.40x = 46,061,203,496.64
  5. Step 5: Solve for x
    x = 46,061,203,496.64/342,402.40
  6. Step 6: Final answer
    x = 134,523.60

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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.