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Finding the Fourth Proportional to 348,518.90, 521,395.95 and 302,285.30

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Solution

The fourth proportional to 348,518.90, 521,395.95 and 302,285.30 is: 452,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,518.90 : 521,395.95 = 302,285.30 : x
  2. Step 2: Convert to fraction form
    348,518.90/521,395.95 = 302,285.30/x
  3. Step 3: Cross multiply
    348,518.90x = 521,395.95 × 302,285.30
  4. Step 4: Simplify right side
    348,518.90x = 157,610,331,164.54
  5. Step 5: Solve for x
    x = 157,610,331,164.54/348,518.90
  6. Step 6: Final answer
    x = 452,228.94

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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.