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Finding the Fourth Proportional to 288,518.75, 432,651.05 and 153,550.27

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Solution

The fourth proportional to 288,518.75, 432,651.05 and 153,550.27 is: 230,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,518.75 : 432,651.05 = 153,550.27 : x
  2. Step 2: Convert to fraction form
    288,518.75/432,651.05 = 153,550.27/x
  3. Step 3: Cross multiply
    288,518.75x = 432,651.05 × 153,550.27
  4. Step 4: Simplify right side
    288,518.75x = 66,433,685,543.28
  5. Step 5: Solve for x
    x = 66,433,685,543.28/288,518.75
  6. Step 6: Final answer
    x = 230,257.78

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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.