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Finding the Fourth Proportional to 322,476.04, 445,070.46 and 186,486.76

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Solution

The fourth proportional to 322,476.04, 445,070.46 and 186,486.76 is: 257,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,476.04 : 445,070.46 = 186,486.76 : x
  2. Step 2: Convert to fraction form
    322,476.04/445,070.46 = 186,486.76/x
  3. Step 3: Cross multiply
    322,476.04x = 445,070.46 × 186,486.76
  4. Step 4: Simplify right side
    322,476.04x = 82,999,748,057.11
  5. Step 5: Solve for x
    x = 82,999,748,057.11/322,476.04
  6. Step 6: Final answer
    x = 257,382.68

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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.