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Finding the Fourth Proportional to 219,995.34, 329,998.68 and 70,235.48

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Solution

The fourth proportional to 219,995.34, 329,998.68 and 70,235.48 is: 105,355.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,995.34 : 329,998.68 = 70,235.48 : x
  2. Step 2: Convert to fraction form
    219,995.34/329,998.68 = 70,235.48/x
  3. Step 3: Cross multiply
    219,995.34x = 329,998.68 × 70,235.48
  4. Step 4: Simplify right side
    219,995.34x = 23,177,615,689.17
  5. Step 5: Solve for x
    x = 23,177,615,689.17/219,995.34
  6. Step 6: Final answer
    x = 105,355.03

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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.