Home / 308,015.02-425,048.03-172,048.32

Finding the Fourth Proportional to 308,015.02, 425,048.03 and 172,048.32

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Solution

The fourth proportional to 308,015.02, 425,048.03 and 172,048.32 is: 237,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,015.02 : 425,048.03 = 172,048.32 : x
  2. Step 2: Convert to fraction form
    308,015.02/425,048.03 = 172,048.32/x
  3. Step 3: Cross multiply
    308,015.02x = 425,048.03 × 172,048.32
  4. Step 4: Simplify right side
    308,015.02x = 73,128,799,480.81
  5. Step 5: Solve for x
    x = 73,128,799,480.81/308,015.02
  6. Step 6: Final answer
    x = 237,419.59

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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.