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Finding the Fourth Proportional to 342,426.72, 513,173.44 and 164,920.80

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Solution

The fourth proportional to 342,426.72, 513,173.44 and 164,920.80 is: 247,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,426.72 : 513,173.44 = 164,920.80 : x
  2. Step 2: Convert to fraction form
    342,426.72/513,173.44 = 164,920.80/x
  3. Step 3: Cross multiply
    342,426.72x = 513,173.44 × 164,920.80
  4. Step 4: Simplify right side
    342,426.72x = 84,632,974,263.55
  5. Step 5: Solve for x
    x = 84,632,974,263.55/342,426.72
  6. Step 6: Final answer
    x = 247,156.46

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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.