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Finding the Fourth Proportional to 162,453.80, 243,680.70 and 155,455.40

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Solution

The fourth proportional to 162,453.80, 243,680.70 and 155,455.40 is: 233,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,453.80 : 243,680.70 = 155,455.40 : x
  2. Step 2: Convert to fraction form
    162,453.80/243,680.70 = 155,455.40/x
  3. Step 3: Cross multiply
    162,453.80x = 243,680.70 × 155,455.40
  4. Step 4: Simplify right side
    162,453.80x = 37,881,480,690.78
  5. Step 5: Solve for x
    x = 37,881,480,690.78/162,453.80
  6. Step 6: Final answer
    x = 233,183.10

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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.