Home / 201,917.40-302,876.10-154,678.20

Finding the Fourth Proportional to 201,917.40, 302,876.10 and 154,678.20

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Solution

The fourth proportional to 201,917.40, 302,876.10 and 154,678.20 is: 232,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,917.40 : 302,876.10 = 154,678.20 : x
  2. Step 2: Convert to fraction form
    201,917.40/302,876.10 = 154,678.20/x
  3. Step 3: Cross multiply
    201,917.40x = 302,876.10 × 154,678.20
  4. Step 4: Simplify right side
    201,917.40x = 46,848,329,971.02
  5. Step 5: Solve for x
    x = 46,848,329,971.02/201,917.40
  6. Step 6: Final answer
    x = 232,017.30

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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.