Home / 223,890.48-308,731.50-143,321.40

Finding the Fourth Proportional to 223,890.48, 308,731.50 and 143,321.40

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Solution

The fourth proportional to 223,890.48, 308,731.50 and 143,321.40 is: 197,631.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,890.48 : 308,731.50 = 143,321.40 : x
  2. Step 2: Convert to fraction form
    223,890.48/308,731.50 = 143,321.40/x
  3. Step 3: Cross multiply
    223,890.48x = 308,731.50 × 143,321.40
  4. Step 4: Simplify right side
    223,890.48x = 44,247,830,804.10
  5. Step 5: Solve for x
    x = 44,247,830,804.10/223,890.48
  6. Step 6: Final answer
    x = 197,631.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.