Home / 309,172.16-463,091.70-208,780.31

Finding the Fourth Proportional to 309,172.16, 463,091.70 and 208,780.31

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Solution

The fourth proportional to 309,172.16, 463,091.70 and 208,780.31 is: 312,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,172.16 : 463,091.70 = 208,780.31 : x
  2. Step 2: Convert to fraction form
    309,172.16/463,091.70 = 208,780.31/x
  3. Step 3: Cross multiply
    309,172.16x = 463,091.70 × 208,780.31
  4. Step 4: Simplify right side
    309,172.16x = 96,684,428,162.48
  5. Step 5: Solve for x
    x = 96,684,428,162.48/309,172.16
  6. Step 6: Final answer
    x = 312,720.36

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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.