Home / 255,717.40-383,705.66-170,386.58

Finding the Fourth Proportional to 255,717.40, 383,705.66 and 170,386.58

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Solution

The fourth proportional to 255,717.40, 383,705.66 and 170,386.58 is: 255,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,717.40 : 383,705.66 = 170,386.58 : x
  2. Step 2: Convert to fraction form
    255,717.40/383,705.66 = 170,386.58/x
  3. Step 3: Cross multiply
    255,717.40x = 383,705.66 × 170,386.58
  4. Step 4: Simplify right side
    255,717.40x = 65,378,295,134.04
  5. Step 5: Solve for x
    x = 65,378,295,134.04/255,717.40
  6. Step 6: Final answer
    x = 255,666.20

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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.