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Finding the Fourth Proportional to 215,119.62, 322,730.46 and 65,368.44

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Solution

The fourth proportional to 215,119.62, 322,730.46 and 65,368.44 is: 98,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,119.62 : 322,730.46 = 65,368.44 : x
  2. Step 2: Convert to fraction form
    215,119.62/322,730.46 = 65,368.44/x
  3. Step 3: Cross multiply
    215,119.62x = 322,730.46 × 65,368.44
  4. Step 4: Simplify right side
    215,119.62x = 21,096,386,710.68
  5. Step 5: Solve for x
    x = 21,096,386,710.68/215,119.62
  6. Step 6: Final answer
    x = 98,068.17

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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.