Home / 1,206.19-1,809.24-340.50

Finding the Fourth Proportional to 1,206.19, 1,809.24 and 340.50

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Solution

The fourth proportional to 1,206.19, 1,809.24 and 340.50 is: 510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.19 : 1,809.24 = 340.50 : x
  2. Step 2: Convert to fraction form
    1,206.19/1,809.24 = 340.50/x
  3. Step 3: Cross multiply
    1,206.19x = 1,809.24 × 340.50
  4. Step 4: Simplify right side
    1,206.19x = 616,051.73
  5. Step 5: Solve for x
    x = 616,051.73/1,206.19
  6. Step 6: Final answer
    x = 510.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.