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Finding the Fourth Proportional to 348,040.60, 522,060.90 and 305,186.20

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Solution

The fourth proportional to 348,040.60, 522,060.90 and 305,186.20 is: 457,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,040.60 : 522,060.90 = 305,186.20 : x
  2. Step 2: Convert to fraction form
    348,040.60/522,060.90 = 305,186.20/x
  3. Step 3: Cross multiply
    348,040.60x = 522,060.90 × 305,186.20
  4. Step 4: Simplify right side
    348,040.60x = 159,325,782,239.58
  5. Step 5: Solve for x
    x = 159,325,782,239.58/348,040.60
  6. Step 6: Final answer
    x = 457,779.30

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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.