Home / 346,379.20-478,112.16-203,197.12

Finding the Fourth Proportional to 346,379.20, 478,112.16 and 203,197.12

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Solution

The fourth proportional to 346,379.20, 478,112.16 and 203,197.12 is: 280,475.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,379.20 : 478,112.16 = 203,197.12 : x
  2. Step 2: Convert to fraction form
    346,379.20/478,112.16 = 203,197.12/x
  3. Step 3: Cross multiply
    346,379.20x = 478,112.16 × 203,197.12
  4. Step 4: Simplify right side
    346,379.20x = 97,151,013,948.98
  5. Step 5: Solve for x
    x = 97,151,013,948.98/346,379.20
  6. Step 6: Final answer
    x = 280,475.89

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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.