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Finding the Fourth Proportional to 271,730.20, 407,595.30 and 253,298.20

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Solution

The fourth proportional to 271,730.20, 407,595.30 and 253,298.20 is: 379,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,730.20 : 407,595.30 = 253,298.20 : x
  2. Step 2: Convert to fraction form
    271,730.20/407,595.30 = 253,298.20/x
  3. Step 3: Cross multiply
    271,730.20x = 407,595.30 × 253,298.20
  4. Step 4: Simplify right side
    271,730.20x = 103,243,155,818.46
  5. Step 5: Solve for x
    x = 103,243,155,818.46/271,730.20
  6. Step 6: Final answer
    x = 379,947.30

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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.