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Finding the Fourth Proportional to 322,501.98, 445,041.52 and 207,785.46

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Solution

The fourth proportional to 322,501.98, 445,041.52 and 207,785.46 is: 286,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,501.98 : 445,041.52 = 207,785.46 : x
  2. Step 2: Convert to fraction form
    322,501.98/445,041.52 = 207,785.46/x
  3. Step 3: Cross multiply
    322,501.98x = 445,041.52 × 207,785.46
  4. Step 4: Simplify right side
    322,501.98x = 92,473,154,727.09
  5. Step 5: Solve for x
    x = 92,473,154,727.09/322,501.98
  6. Step 6: Final answer
    x = 286,736.70

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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.