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Finding the Fourth Proportional to 289,730.60, 434,595.90 and 250,850.60

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Solution

The fourth proportional to 289,730.60, 434,595.90 and 250,850.60 is: 376,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,730.60 : 434,595.90 = 250,850.60 : x
  2. Step 2: Convert to fraction form
    289,730.60/434,595.90 = 250,850.60/x
  3. Step 3: Cross multiply
    289,730.60x = 434,595.90 × 250,850.60
  4. Step 4: Simplify right side
    289,730.60x = 109,018,642,272.54
  5. Step 5: Solve for x
    x = 109,018,642,272.54/289,730.60
  6. Step 6: Final answer
    x = 376,275.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.