Home / 217,946.21-300,899.95-172,806.53

Finding the Fourth Proportional to 217,946.21, 300,899.95 and 172,806.53

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Solution

The fourth proportional to 217,946.21, 300,899.95 and 172,806.53 is: 238,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,946.21 : 300,899.95 = 172,806.53 : x
  2. Step 2: Convert to fraction form
    217,946.21/300,899.95 = 172,806.53/x
  3. Step 3: Cross multiply
    217,946.21x = 300,899.95 × 172,806.53
  4. Step 4: Simplify right side
    217,946.21x = 51,997,474,300.16
  5. Step 5: Solve for x
    x = 51,997,474,300.16/217,946.21
  6. Step 6: Final answer
    x = 238,579.40

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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.