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Finding the Fourth Proportional to 162,048.80, 243,071.60 and 51,240.80

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Solution

The fourth proportional to 162,048.80, 243,071.60 and 51,240.80 is: 76,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,048.80 : 243,071.60 = 51,240.80 : x
  2. Step 2: Convert to fraction form
    162,048.80/243,071.60 = 51,240.80/x
  3. Step 3: Cross multiply
    162,048.80x = 243,071.60 × 51,240.80
  4. Step 4: Simplify right side
    162,048.80x = 12,455,183,241.28
  5. Step 5: Solve for x
    x = 12,455,183,241.28/162,048.80
  6. Step 6: Final answer
    x = 76,860.69

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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.