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Finding the Fourth Proportional to 213,483.60, 320,340.60 and 88,837.20

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Solution

The fourth proportional to 213,483.60, 320,340.60 and 88,837.20 is: 133,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,483.60 : 320,340.60 = 88,837.20 : x
  2. Step 2: Convert to fraction form
    213,483.60/320,340.60 = 88,837.20/x
  3. Step 3: Cross multiply
    213,483.60x = 320,340.60 × 88,837.20
  4. Step 4: Simplify right side
    213,483.60x = 28,458,161,950.32
  5. Step 5: Solve for x
    x = 28,458,161,950.32/213,483.60
  6. Step 6: Final answer
    x = 133,303.74

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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.