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Finding the Fourth Proportional to 219,739.80, 329,609.70 and 93,347.40

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Solution

The fourth proportional to 219,739.80, 329,609.70 and 93,347.40 is: 140,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,739.80 : 329,609.70 = 93,347.40 : x
  2. Step 2: Convert to fraction form
    219,739.80/329,609.70 = 93,347.40/x
  3. Step 3: Cross multiply
    219,739.80x = 329,609.70 × 93,347.40
  4. Step 4: Simplify right side
    219,739.80x = 30,768,208,509.78
  5. Step 5: Solve for x
    x = 30,768,208,509.78/219,739.80
  6. Step 6: Final answer
    x = 140,021.10

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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.