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Finding the Fourth Proportional to 219,787.42, 329,730.86 and 70,036.24

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Solution

The fourth proportional to 219,787.42, 329,730.86 and 70,036.24 is: 105,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,787.42 : 329,730.86 = 70,036.24 : x
  2. Step 2: Convert to fraction form
    219,787.42/329,730.86 = 70,036.24/x
  3. Step 3: Cross multiply
    219,787.42x = 329,730.86 × 70,036.24
  4. Step 4: Simplify right side
    219,787.42x = 23,093,109,296.19
  5. Step 5: Solve for x
    x = 23,093,109,296.19/219,787.42
  6. Step 6: Final answer
    x = 105,070.21

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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.