Home / 219,184.96-302,470.32-123,689.20

Finding the Fourth Proportional to 219,184.96, 302,470.32 and 123,689.20

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Solution

The fourth proportional to 219,184.96, 302,470.32 and 123,689.20 is: 170,688.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,184.96 : 302,470.32 = 123,689.20 : x
  2. Step 2: Convert to fraction form
    219,184.96/302,470.32 = 123,689.20/x
  3. Step 3: Cross multiply
    219,184.96x = 302,470.32 × 123,689.20
  4. Step 4: Simplify right side
    219,184.96x = 37,412,311,904.54
  5. Step 5: Solve for x
    x = 37,412,311,904.54/219,184.96
  6. Step 6: Final answer
    x = 170,688.32

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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.