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Finding the Fourth Proportional to 370,704.75, 510,193.53 and 305,653.65

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Solution

The fourth proportional to 370,704.75, 510,193.53 and 305,653.65 is: 420,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,704.75 : 510,193.53 = 305,653.65 : x
  2. Step 2: Convert to fraction form
    370,704.75/510,193.53 = 305,653.65/x
  3. Step 3: Cross multiply
    370,704.75x = 510,193.53 × 305,653.65
  4. Step 4: Simplify right side
    370,704.75x = 155,942,514,650.89
  5. Step 5: Solve for x
    x = 155,942,514,650.89/370,704.75
  6. Step 6: Final answer
    x = 420,665.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.