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Finding the Fourth Proportional to 348,521.90, 521,400.45 and 302,288.30

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Solution

The fourth proportional to 348,521.90, 521,400.45 and 302,288.30 is: 452,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,521.90 : 521,400.45 = 302,288.30 : x
  2. Step 2: Convert to fraction form
    348,521.90/521,400.45 = 302,288.30/x
  3. Step 3: Cross multiply
    348,521.90x = 521,400.45 × 302,288.30
  4. Step 4: Simplify right side
    348,521.90x = 157,613,255,649.74
  5. Step 5: Solve for x
    x = 157,613,255,649.74/348,521.90
  6. Step 6: Final answer
    x = 452,233.43

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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.