Home / 348,519.40-521,396.70-302,285.80

Finding the Fourth Proportional to 348,519.40, 521,396.70 and 302,285.80

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Solution

The fourth proportional to 348,519.40, 521,396.70 and 302,285.80 is: 452,229.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,519.40 : 521,396.70 = 302,285.80 : x
  2. Step 2: Convert to fraction form
    348,519.40/521,396.70 = 302,285.80/x
  3. Step 3: Cross multiply
    348,519.40x = 521,396.70 × 302,285.80
  4. Step 4: Simplify right side
    348,519.40x = 157,610,818,576.86
  5. Step 5: Solve for x
    x = 157,610,818,576.86/348,519.40
  6. Step 6: Final answer
    x = 452,229.69

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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.