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Finding the Fourth Proportional to 219,417.60, 329,137.78 and 69,669.60

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Solution

The fourth proportional to 219,417.60, 329,137.78 and 69,669.60 is: 104,508.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,417.60 : 329,137.78 = 69,669.60 : x
  2. Step 2: Convert to fraction form
    219,417.60/329,137.78 = 69,669.60/x
  3. Step 3: Cross multiply
    219,417.60x = 329,137.78 × 69,669.60
  4. Step 4: Simplify right side
    219,417.60x = 22,930,897,477.49
  5. Step 5: Solve for x
    x = 22,930,897,477.49/219,417.60
  6. Step 6: Final answer
    x = 104,508.01

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1.5x scale

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.