Home / 208,022.66-286,994.21-153,705.78

Finding the Fourth Proportional to 208,022.66, 286,994.21 and 153,705.78

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Solution

The fourth proportional to 208,022.66, 286,994.21 and 153,705.78 is: 212,057.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,022.66 : 286,994.21 = 153,705.78 : x
  2. Step 2: Convert to fraction form
    208,022.66/286,994.21 = 153,705.78/x
  3. Step 3: Cross multiply
    208,022.66x = 286,994.21 × 153,705.78
  4. Step 4: Simplify right side
    208,022.66x = 44,112,668,903.53
  5. Step 5: Solve for x
    x = 44,112,668,903.53/208,022.66
  6. Step 6: Final answer
    x = 212,057.04

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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.