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Finding the Fourth Proportional to 230,859.11, 318,590.93 and 144,821.72

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Solution

The fourth proportional to 230,859.11, 318,590.93 and 144,821.72 is: 199,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,859.11 : 318,590.93 = 144,821.72 : x
  2. Step 2: Convert to fraction form
    230,859.11/318,590.93 = 144,821.72/x
  3. Step 3: Cross multiply
    230,859.11x = 318,590.93 × 144,821.72
  4. Step 4: Simplify right side
    230,859.11x = 46,138,884,141.94
  5. Step 5: Solve for x
    x = 46,138,884,141.94/230,859.11
  6. Step 6: Final answer
    x = 199,857.32

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1.5x scale

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.