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Finding the Fourth Proportional to 219,801.78, 329,699.07 and 70,040.07

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Solution

The fourth proportional to 219,801.78, 329,699.07 and 70,040.07 is: 105,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,801.78 : 329,699.07 = 70,040.07 : x
  2. Step 2: Convert to fraction form
    219,801.78/329,699.07 = 70,040.07/x
  3. Step 3: Cross multiply
    219,801.78x = 329,699.07 × 70,040.07
  4. Step 4: Simplify right side
    219,801.78x = 23,092,145,941.73
  5. Step 5: Solve for x
    x = 23,092,145,941.73/219,801.78
  6. Step 6: Final answer
    x = 105,058.96

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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.