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Finding the Fourth Proportional to 445,956.45, 668,683.71 and 146,411.79

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Solution

The fourth proportional to 445,956.45, 668,683.71 and 146,411.79 is: 219,535.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,956.45 : 668,683.71 = 146,411.79 : x
  2. Step 2: Convert to fraction form
    445,956.45/668,683.71 = 146,411.79/x
  3. Step 3: Cross multiply
    445,956.45x = 668,683.71 × 146,411.79
  4. Step 4: Simplify right side
    445,956.45x = 97,903,178,924.94
  5. Step 5: Solve for x
    x = 97,903,178,924.94/445,956.45
  6. Step 6: Final answer
    x = 219,535.29

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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.