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Finding the Fourth Proportional to 219,907.82, 329,915.46 and 70,148.14

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Solution

The fourth proportional to 219,907.82, 329,915.46 and 70,148.14 is: 105,239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,907.82 : 329,915.46 = 70,148.14 : x
  2. Step 2: Convert to fraction form
    219,907.82/329,915.46 = 70,148.14/x
  3. Step 3: Cross multiply
    219,907.82x = 329,915.46 × 70,148.14
  4. Step 4: Simplify right side
    219,907.82x = 23,142,955,876.24
  5. Step 5: Solve for x
    x = 23,142,955,876.24/219,907.82
  6. Step 6: Final answer
    x = 105,239.35

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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.