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Finding the Fourth Proportional to 342,558.67, 513,801.03 and 89,864.47

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Solution

The fourth proportional to 342,558.67, 513,801.03 and 89,864.47 is: 134,787.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,558.67 : 513,801.03 = 89,864.47 : x
  2. Step 2: Convert to fraction form
    342,558.67/513,801.03 = 89,864.47/x
  3. Step 3: Cross multiply
    342,558.67x = 513,801.03 × 89,864.47
  4. Step 4: Simplify right side
    342,558.67x = 46,172,457,246.40
  5. Step 5: Solve for x
    x = 46,172,457,246.40/342,558.67
  6. Step 6: Final answer
    x = 134,787.01

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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.