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Finding the Fourth Proportional to 342,074.63, 512,894.57 and 300,039.11

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Solution

The fourth proportional to 342,074.63, 512,894.57 and 300,039.11 is: 449,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,074.63 : 512,894.57 = 300,039.11 : x
  2. Step 2: Convert to fraction form
    342,074.63/512,894.57 = 300,039.11/x
  3. Step 3: Cross multiply
    342,074.63x = 512,894.57 × 300,039.11
  4. Step 4: Simplify right side
    342,074.63x = 153,888,426,241.96
  5. Step 5: Solve for x
    x = 153,888,426,241.96/342,074.63
  6. Step 6: Final answer
    x = 449,868.00

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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.