Home / 328,439.36-492,616.60-103,822.46

Finding the Fourth Proportional to 328,439.36, 492,616.60 and 103,822.46

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Solution

The fourth proportional to 328,439.36, 492,616.60 and 103,822.46 is: 155,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,439.36 : 492,616.60 = 103,822.46 : x
  2. Step 2: Convert to fraction form
    328,439.36/492,616.60 = 103,822.46/x
  3. Step 3: Cross multiply
    328,439.36x = 492,616.60 × 103,822.46
  4. Step 4: Simplify right side
    328,439.36x = 51,144,666,957.51
  5. Step 5: Solve for x
    x = 51,144,666,957.51/328,439.36
  6. Step 6: Final answer
    x = 155,720.27

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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.