Home / 201,820.48-304,189.60-190,389.76

Finding the Fourth Proportional to 201,820.48, 304,189.60 and 190,389.76

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Solution

The fourth proportional to 201,820.48, 304,189.60 and 190,389.76 is: 286,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,820.48 : 304,189.60 = 190,389.76 : x
  2. Step 2: Convert to fraction form
    201,820.48/304,189.60 = 190,389.76/x
  3. Step 3: Cross multiply
    201,820.48x = 304,189.60 × 190,389.76
  4. Step 4: Simplify right side
    201,820.48x = 57,914,584,938.50
  5. Step 5: Solve for x
    x = 57,914,584,938.50/201,820.48
  6. Step 6: Final answer
    x = 286,960.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.