Home / 314,749.20-470,971.80-231,805.20

Finding the Fourth Proportional to 314,749.20, 470,971.80 and 231,805.20

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Solution

The fourth proportional to 314,749.20, 470,971.80 and 231,805.20 is: 346,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,749.20 : 470,971.80 = 231,805.20 : x
  2. Step 2: Convert to fraction form
    314,749.20/470,971.80 = 231,805.20/x
  3. Step 3: Cross multiply
    314,749.20x = 470,971.80 × 231,805.20
  4. Step 4: Simplify right side
    314,749.20x = 109,173,712,293.36
  5. Step 5: Solve for x
    x = 109,173,712,293.36/314,749.20
  6. Step 6: Final answer
    x = 346,859.38

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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.