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Finding the Fourth Proportional to 383,333.48, 528,641.39 and 302,953.03

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Solution

The fourth proportional to 383,333.48, 528,641.39 and 302,953.03 is: 417,791.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,333.48 : 528,641.39 = 302,953.03 : x
  2. Step 2: Convert to fraction form
    383,333.48/528,641.39 = 302,953.03/x
  3. Step 3: Cross multiply
    383,333.48x = 528,641.39 × 302,953.03
  4. Step 4: Simplify right side
    383,333.48x = 160,153,510,883.91
  5. Step 5: Solve for x
    x = 160,153,510,883.91/383,333.48
  6. Step 6: Final answer
    x = 417,791.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.