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Finding the Fourth Proportional to 170,868.70, 256,303.05 and 162,315.10

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Solution

The fourth proportional to 170,868.70, 256,303.05 and 162,315.10 is: 243,472.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,868.70 : 256,303.05 = 162,315.10 : x
  2. Step 2: Convert to fraction form
    170,868.70/256,303.05 = 162,315.10/x
  3. Step 3: Cross multiply
    170,868.70x = 256,303.05 × 162,315.10
  4. Step 4: Simplify right side
    170,868.70x = 41,601,855,191.06
  5. Step 5: Solve for x
    x = 41,601,855,191.06/170,868.70
  6. Step 6: Final answer
    x = 243,472.65

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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.