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Finding the Fourth Proportional to 342,544.20, 480,349.20 and 342,544.20

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Solution

The fourth proportional to 342,544.20, 480,349.20 and 342,544.20 is: 480,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,544.20 : 480,349.20 = 342,544.20 : x
  2. Step 2: Convert to fraction form
    342,544.20/480,349.20 = 342,544.20/x
  3. Step 3: Cross multiply
    342,544.20x = 480,349.20 × 342,544.20
  4. Step 4: Simplify right side
    342,544.20x = 164,540,832,434.64
  5. Step 5: Solve for x
    x = 164,540,832,434.64/342,544.20
  6. Step 6: Final answer
    x = 480,349.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.