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Finding the Fourth Proportional to 162,801.60, 243,878.40 and 143,318.40

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Solution

The fourth proportional to 162,801.60, 243,878.40 and 143,318.40 is: 214,692.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,801.60 : 243,878.40 = 143,318.40 : x
  2. Step 2: Convert to fraction form
    162,801.60/243,878.40 = 143,318.40/x
  3. Step 3: Cross multiply
    162,801.60x = 243,878.40 × 143,318.40
  4. Step 4: Simplify right side
    162,801.60x = 34,952,262,082.56
  5. Step 5: Solve for x
    x = 34,952,262,082.56/162,801.60
  6. Step 6: Final answer
    x = 214,692.37

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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.