Home / 245,621.34-338,957.37-136,723.32

Finding the Fourth Proportional to 245,621.34, 338,957.37 and 136,723.32

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Solution

The fourth proportional to 245,621.34, 338,957.37 and 136,723.32 is: 188,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,621.34 : 338,957.37 = 136,723.32 : x
  2. Step 2: Convert to fraction form
    245,621.34/338,957.37 = 136,723.32/x
  3. Step 3: Cross multiply
    245,621.34x = 338,957.37 × 136,723.32
  4. Step 4: Simplify right side
    245,621.34x = 46,343,376,964.87
  5. Step 5: Solve for x
    x = 46,343,376,964.87/245,621.34
  6. Step 6: Final answer
    x = 188,678.14

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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.