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Finding the Fourth Proportional to 345,980.48, 477,451.68 and 187,004.48

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Solution

The fourth proportional to 345,980.48, 477,451.68 and 187,004.48 is: 258,065.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,980.48 : 477,451.68 = 187,004.48 : x
  2. Step 2: Convert to fraction form
    345,980.48/477,451.68 = 187,004.48/x
  3. Step 3: Cross multiply
    345,980.48x = 477,451.68 × 187,004.48
  4. Step 4: Simplify right side
    345,980.48x = 89,285,603,143.53
  5. Step 5: Solve for x
    x = 89,285,603,143.53/345,980.48
  6. Step 6: Final answer
    x = 258,065.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.