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Finding the Fourth Proportional to 342,900.15, 474,104.76 and 300,336.27

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Solution

The fourth proportional to 342,900.15, 474,104.76 and 300,336.27 is: 415,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,900.15 : 474,104.76 = 300,336.27 : x
  2. Step 2: Convert to fraction form
    342,900.15/474,104.76 = 300,336.27/x
  3. Step 3: Cross multiply
    342,900.15x = 474,104.76 × 300,336.27
  4. Step 4: Simplify right side
    342,900.15x = 142,390,852,837.12
  5. Step 5: Solve for x
    x = 142,390,852,837.12/342,900.15
  6. Step 6: Final answer
    x = 415,254.57

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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.