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Finding the Fourth Proportional to 369,069.93, 553,779.86 and 219,605.49

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Solution

The fourth proportional to 369,069.93, 553,779.86 and 219,605.49 is: 329,512.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,069.93 : 553,779.86 = 219,605.49 : x
  2. Step 2: Convert to fraction form
    369,069.93/553,779.86 = 219,605.49/x
  3. Step 3: Cross multiply
    369,069.93x = 553,779.86 × 219,605.49
  4. Step 4: Simplify right side
    369,069.93x = 121,613,096,409.40
  5. Step 5: Solve for x
    x = 121,613,096,409.40/369,069.93
  6. Step 6: Final answer
    x = 329,512.34

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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.