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Finding the Fourth Proportional to 348,154.40, 521,648.40 and 297,999.20

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Solution

The fourth proportional to 348,154.40, 521,648.40 and 297,999.20 is: 446,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,154.40 : 521,648.40 = 297,999.20 : x
  2. Step 2: Convert to fraction form
    348,154.40/521,648.40 = 297,999.20/x
  3. Step 3: Cross multiply
    348,154.40x = 521,648.40 × 297,999.20
  4. Step 4: Simplify right side
    348,154.40x = 155,450,805,881.28
  5. Step 5: Solve for x
    x = 155,450,805,881.28/348,154.40
  6. Step 6: Final answer
    x = 446,499.62

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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.