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Finding the Fourth Proportional to 342,544.60, 513,771.54 and 155,513.08

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Solution

The fourth proportional to 342,544.60, 513,771.54 and 155,513.08 is: 233,249.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,544.60 : 513,771.54 = 155,513.08 : x
  2. Step 2: Convert to fraction form
    342,544.60/513,771.54 = 155,513.08/x
  3. Step 3: Cross multiply
    342,544.60x = 513,771.54 × 155,513.08
  4. Step 4: Simplify right side
    342,544.60x = 79,898,194,601.74
  5. Step 5: Solve for x
    x = 79,898,194,601.74/342,544.60
  6. Step 6: Final answer
    x = 233,249.03

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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.