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Finding the Fourth Proportional to 280,152.95, 418,044.39 and 249,959.63

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Solution

The fourth proportional to 280,152.95, 418,044.39 and 249,959.63 is: 372,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,152.95 : 418,044.39 = 249,959.63 : x
  2. Step 2: Convert to fraction form
    280,152.95/418,044.39 = 249,959.63/x
  3. Step 3: Cross multiply
    280,152.95x = 418,044.39 × 249,959.63
  4. Step 4: Simplify right side
    280,152.95x = 104,494,222,093.09
  5. Step 5: Solve for x
    x = 104,494,222,093.09/280,152.95
  6. Step 6: Final answer
    x = 372,989.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.