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Finding the Fourth Proportional to 219,073.61, 328,665.09 and 61,300.70

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Solution

The fourth proportional to 219,073.61, 328,665.09 and 61,300.70 is: 91,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,073.61 : 328,665.09 = 61,300.70 : x
  2. Step 2: Convert to fraction form
    219,073.61/328,665.09 = 61,300.70/x
  3. Step 3: Cross multiply
    219,073.61x = 328,665.09 × 61,300.70
  4. Step 4: Simplify right side
    219,073.61x = 20,147,399,901.61
  5. Step 5: Solve for x
    x = 20,147,399,901.61/219,073.61
  6. Step 6: Final answer
    x = 91,966.35

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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.