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Finding the Fourth Proportional to 152,394, 228,440.32 and 72,291.52

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Solution

The fourth proportional to 152,394, 228,440.32 and 72,291.52 is: 108,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,394 : 228,440.32 = 72,291.52 : x
  2. Step 2: Convert to fraction form
    152,394/228,440.32 = 72,291.52/x
  3. Step 3: Cross multiply
    152,394x = 228,440.32 × 72,291.52
  4. Step 4: Simplify right side
    152,394x = 16,514,297,962.09
  5. Step 5: Solve for x
    x = 16,514,297,962.09/152,394
  6. Step 6: Final answer
    x = 108,365.80

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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.