Home / 219,368.64-302,740.56-123,879.36

Finding the Fourth Proportional to 219,368.64, 302,740.56 and 123,879.36

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Solution

The fourth proportional to 219,368.64, 302,740.56 and 123,879.36 is: 170,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,368.64 : 302,740.56 = 123,879.36 : x
  2. Step 2: Convert to fraction form
    219,368.64/302,740.56 = 123,879.36/x
  3. Step 3: Cross multiply
    219,368.64x = 302,740.56 × 123,879.36
  4. Step 4: Simplify right side
    219,368.64x = 37,503,306,818.84
  5. Step 5: Solve for x
    x = 37,503,306,818.84/219,368.64
  6. Step 6: Final answer
    x = 170,960.20

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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.