Home / 210,477.49-290,465.40-114,990.37

Finding the Fourth Proportional to 210,477.49, 290,465.40 and 114,990.37

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Solution

The fourth proportional to 210,477.49, 290,465.40 and 114,990.37 is: 158,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,477.49 : 290,465.40 = 114,990.37 : x
  2. Step 2: Convert to fraction form
    210,477.49/290,465.40 = 114,990.37/x
  3. Step 3: Cross multiply
    210,477.49x = 290,465.40 × 114,990.37
  4. Step 4: Simplify right side
    210,477.49x = 33,400,723,818.20
  5. Step 5: Solve for x
    x = 33,400,723,818.20/210,477.49
  6. Step 6: Final answer
    x = 158,690.24

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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.