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Finding the Fourth Proportional to 219,364.58, 329,068.48 and 91,254.58

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Solution

The fourth proportional to 219,364.58, 329,068.48 and 91,254.58 is: 136,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,364.58 : 329,068.48 = 91,254.58 : x
  2. Step 2: Convert to fraction form
    219,364.58/329,068.48 = 91,254.58/x
  3. Step 3: Cross multiply
    219,364.58x = 329,068.48 × 91,254.58
  4. Step 4: Simplify right side
    219,364.58x = 30,029,005,933.64
  5. Step 5: Solve for x
    x = 30,029,005,933.64/219,364.58
  6. Step 6: Final answer
    x = 136,890.86

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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.