Home / 218,948.58-302,139.86-123,464.16

Finding the Fourth Proportional to 218,948.58, 302,139.86 and 123,464.16

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Solution

The fourth proportional to 218,948.58, 302,139.86 and 123,464.16 is: 170,375.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,948.58 : 302,139.86 = 123,464.16 : x
  2. Step 2: Convert to fraction form
    218,948.58/302,139.86 = 123,464.16/x
  3. Step 3: Cross multiply
    218,948.58x = 302,139.86 × 123,464.16
  4. Step 4: Simplify right side
    218,948.58x = 37,303,443,400.10
  5. Step 5: Solve for x
    x = 37,303,443,400.10/218,948.58
  6. Step 6: Final answer
    x = 170,375.36

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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.