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Finding the Fourth Proportional to 308,298.40, 425,448.57 and 180,949.39

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Solution

The fourth proportional to 308,298.40, 425,448.57 and 180,949.39 is: 249,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,298.40 : 425,448.57 = 180,949.39 : x
  2. Step 2: Convert to fraction form
    308,298.40/425,448.57 = 180,949.39/x
  3. Step 3: Cross multiply
    308,298.40x = 425,448.57 × 180,949.39
  4. Step 4: Simplify right side
    308,298.40x = 76,984,657,090.63
  5. Step 5: Solve for x
    x = 76,984,657,090.63/308,298.40
  6. Step 6: Final answer
    x = 249,708.26

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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.