Home / 345,399.05-476,632.23-190,345.31

Finding the Fourth Proportional to 345,399.05, 476,632.23 and 190,345.31

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Solution

The fourth proportional to 345,399.05, 476,632.23 and 190,345.31 is: 262,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,399.05 : 476,632.23 = 190,345.31 : x
  2. Step 2: Convert to fraction form
    345,399.05/476,632.23 = 190,345.31/x
  3. Step 3: Cross multiply
    345,399.05x = 476,632.23 × 190,345.31
  4. Step 4: Simplify right side
    345,399.05x = 90,724,707,192.18
  5. Step 5: Solve for x
    x = 90,724,707,192.18/345,399.05
  6. Step 6: Final answer
    x = 262,666.35

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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.