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Finding the Fourth Proportional to 340,013.78, 468,955.41 and 219,174.74

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Solution

The fourth proportional to 340,013.78, 468,955.41 and 219,174.74 is: 302,291.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,013.78 : 468,955.41 = 219,174.74 : x
  2. Step 2: Convert to fraction form
    340,013.78/468,955.41 = 219,174.74/x
  3. Step 3: Cross multiply
    340,013.78x = 468,955.41 × 219,174.74
  4. Step 4: Simplify right side
    340,013.78x = 102,783,180,058.34
  5. Step 5: Solve for x
    x = 102,783,180,058.34/340,013.78
  6. Step 6: Final answer
    x = 302,291.22

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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.