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Finding the Fourth Proportional to 304,029.45, 418,664.70 and 260,690.40

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Solution

The fourth proportional to 304,029.45, 418,664.70 and 260,690.40 is: 358,984.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,029.45 : 418,664.70 = 260,690.40 : x
  2. Step 2: Convert to fraction form
    304,029.45/418,664.70 = 260,690.40/x
  3. Step 3: Cross multiply
    304,029.45x = 418,664.70 × 260,690.40
  4. Step 4: Simplify right side
    304,029.45x = 109,141,868,108.88
  5. Step 5: Solve for x
    x = 109,141,868,108.88/304,029.45
  6. Step 6: Final answer
    x = 358,984.53

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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.