Home / 197,971.20-297,024.80-57,750.40

Finding the Fourth Proportional to 197,971.20, 297,024.80 and 57,750.40

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Solution

The fourth proportional to 197,971.20, 297,024.80 and 57,750.40 is: 86,645.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,971.20 : 297,024.80 = 57,750.40 : x
  2. Step 2: Convert to fraction form
    197,971.20/297,024.80 = 57,750.40/x
  3. Step 3: Cross multiply
    197,971.20x = 297,024.80 × 57,750.40
  4. Step 4: Simplify right side
    197,971.20x = 17,153,301,009.92
  5. Step 5: Solve for x
    x = 17,153,301,009.92/197,971.20
  6. Step 6: Final answer
    x = 86,645.44

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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.