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Finding the Fourth Proportional to 365,689.20, 504,448 and 212,710.17

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Solution

The fourth proportional to 365,689.20, 504,448 and 212,710.17 is: 293,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,689.20 : 504,448 = 212,710.17 : x
  2. Step 2: Convert to fraction form
    365,689.20/504,448 = 212,710.17/x
  3. Step 3: Cross multiply
    365,689.20x = 504,448 × 212,710.17
  4. Step 4: Simplify right side
    365,689.20x = 107,301,219,836.16
  5. Step 5: Solve for x
    x = 107,301,219,836.16/365,689.20
  6. Step 6: Final answer
    x = 293,421.90

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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.