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Finding the Fourth Proportional to 320,303.20, 480,051.60 and 162,575.20

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Solution

The fourth proportional to 320,303.20, 480,051.60 and 162,575.20 is: 243,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,303.20 : 480,051.60 = 162,575.20 : x
  2. Step 2: Convert to fraction form
    320,303.20/480,051.60 = 162,575.20/x
  3. Step 3: Cross multiply
    320,303.20x = 480,051.60 × 162,575.20
  4. Step 4: Simplify right side
    320,303.20x = 78,044,484,880.32
  5. Step 5: Solve for x
    x = 78,044,484,880.32/320,303.20
  6. Step 6: Final answer
    x = 243,658.15

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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.