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Finding the Fourth Proportional to 219,689.63, 329,520.52 and 70,037.30

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Solution

The fourth proportional to 219,689.63, 329,520.52 and 70,037.30 is: 105,051.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,689.63 : 329,520.52 = 70,037.30 : x
  2. Step 2: Convert to fraction form
    219,689.63/329,520.52 = 70,037.30/x
  3. Step 3: Cross multiply
    219,689.63x = 329,520.52 × 70,037.30
  4. Step 4: Simplify right side
    219,689.63x = 23,078,728,426.74
  5. Step 5: Solve for x
    x = 23,078,728,426.74/219,689.63
  6. Step 6: Final answer
    x = 105,051.52

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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.