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Finding the Fourth Proportional to 318,879.77, 440,074.04 and 175,639.77

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Solution

The fourth proportional to 318,879.77, 440,074.04 and 175,639.77 is: 242,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,879.77 : 440,074.04 = 175,639.77 : x
  2. Step 2: Convert to fraction form
    318,879.77/440,074.04 = 175,639.77/x
  3. Step 3: Cross multiply
    318,879.77x = 440,074.04 × 175,639.77
  4. Step 4: Simplify right side
    318,879.77x = 77,294,502,290.37
  5. Step 5: Solve for x
    x = 77,294,502,290.37/318,879.77
  6. Step 6: Final answer
    x = 242,393.88

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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.