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Finding the Fourth Proportional to 308,214.90, 425,367.18 and 180,887.76

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Solution

The fourth proportional to 308,214.90, 425,367.18 and 180,887.76 is: 249,643.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,214.90 : 425,367.18 = 180,887.76 : x
  2. Step 2: Convert to fraction form
    308,214.90/425,367.18 = 180,887.76/x
  3. Step 3: Cross multiply
    308,214.90x = 425,367.18 × 180,887.76
  4. Step 4: Simplify right side
    308,214.90x = 76,943,716,367.72
  5. Step 5: Solve for x
    x = 76,943,716,367.72/308,214.90
  6. Step 6: Final answer
    x = 249,643.08

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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.