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Finding the Fourth Proportional to 346,685.10, 520,200.45 and 197,040.30

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Solution

The fourth proportional to 346,685.10, 520,200.45 and 197,040.30 is: 295,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,685.10 : 520,200.45 = 197,040.30 : x
  2. Step 2: Convert to fraction form
    346,685.10/520,200.45 = 197,040.30/x
  3. Step 3: Cross multiply
    346,685.10x = 520,200.45 × 197,040.30
  4. Step 4: Simplify right side
    346,685.10x = 102,500,452,728.14
  5. Step 5: Solve for x
    x = 102,500,452,728.14/346,685.10
  6. Step 6: Final answer
    x = 295,658.66

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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.