Home / 347,623.20-521,492.40-148,039.20

Finding the Fourth Proportional to 347,623.20, 521,492.40 and 148,039.20

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Solution

The fourth proportional to 347,623.20, 521,492.40 and 148,039.20 is: 222,083.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,623.20 : 521,492.40 = 148,039.20 : x
  2. Step 2: Convert to fraction form
    347,623.20/521,492.40 = 148,039.20/x
  3. Step 3: Cross multiply
    347,623.20x = 521,492.40 × 148,039.20
  4. Step 4: Simplify right side
    347,623.20x = 77,201,317,702.08
  5. Step 5: Solve for x
    x = 77,201,317,702.08/347,623.20
  6. Step 6: Final answer
    x = 222,083.33

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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.