Home / 515,128.48-772,802.16-160,133.92

Finding the Fourth Proportional to 515,128.48, 772,802.16 and 160,133.92

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Solution

The fourth proportional to 515,128.48, 772,802.16 and 160,133.92 is: 240,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,128.48 : 772,802.16 = 160,133.92 : x
  2. Step 2: Convert to fraction form
    515,128.48/772,802.16 = 160,133.92/x
  3. Step 3: Cross multiply
    515,128.48x = 772,802.16 × 160,133.92
  4. Step 4: Simplify right side
    515,128.48x = 123,751,839,265.27
  5. Step 5: Solve for x
    x = 123,751,839,265.27/515,128.48
  6. Step 6: Final answer
    x = 240,234.90

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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.