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Finding the Fourth Proportional to 418,492.10, 577,506.57 and 227,500.58

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Solution

The fourth proportional to 418,492.10, 577,506.57 and 227,500.58 is: 313,943.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,492.10 : 577,506.57 = 227,500.58 : x
  2. Step 2: Convert to fraction form
    418,492.10/577,506.57 = 227,500.58/x
  3. Step 3: Cross multiply
    418,492.10x = 577,506.57 × 227,500.58
  4. Step 4: Simplify right side
    418,492.10x = 131,383,079,628.81
  5. Step 5: Solve for x
    x = 131,383,079,628.81/418,492.10
  6. Step 6: Final answer
    x = 313,943.99

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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.