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Finding the Fourth Proportional to 162,008.40, 243,012.60 and 114,315.60

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Solution

The fourth proportional to 162,008.40, 243,012.60 and 114,315.60 is: 171,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,008.40 : 243,012.60 = 114,315.60 : x
  2. Step 2: Convert to fraction form
    162,008.40/243,012.60 = 114,315.60/x
  3. Step 3: Cross multiply
    162,008.40x = 243,012.60 × 114,315.60
  4. Step 4: Simplify right side
    162,008.40x = 27,780,131,176.56
  5. Step 5: Solve for x
    x = 27,780,131,176.56/162,008.40
  6. Step 6: Final answer
    x = 171,473.40

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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.