Home / 214,675.72-296,246.73-128,683.28

Finding the Fourth Proportional to 214,675.72, 296,246.73 and 128,683.28

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Solution

The fourth proportional to 214,675.72, 296,246.73 and 128,683.28 is: 177,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,675.72 : 296,246.73 = 128,683.28 : x
  2. Step 2: Convert to fraction form
    214,675.72/296,246.73 = 128,683.28/x
  3. Step 3: Cross multiply
    214,675.72x = 296,246.73 × 128,683.28
  4. Step 4: Simplify right side
    214,675.72x = 38,122,000,905.67
  5. Step 5: Solve for x
    x = 38,122,000,905.67/214,675.72
  6. Step 6: Final answer
    x = 177,579.47

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1.5x scale

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.