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Finding the Fourth Proportional to 300,564.90, 414,678.87 and 173,237.76

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Solution

The fourth proportional to 300,564.90, 414,678.87 and 173,237.76 is: 239,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,564.90 : 414,678.87 = 173,237.76 : x
  2. Step 2: Convert to fraction form
    300,564.90/414,678.87 = 173,237.76/x
  3. Step 3: Cross multiply
    300,564.90x = 414,678.87 × 173,237.76
  4. Step 4: Simplify right side
    300,564.90x = 71,838,038,558.13
  5. Step 5: Solve for x
    x = 71,838,038,558.13/300,564.90
  6. Step 6: Final answer
    x = 239,010.07

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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.