Home / 423,128.02-634,380.99-201,667.54

Finding the Fourth Proportional to 423,128.02, 634,380.99 and 201,667.54

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Solution

The fourth proportional to 423,128.02, 634,380.99 and 201,667.54 is: 302,353.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,128.02 : 634,380.99 = 201,667.54 : x
  2. Step 2: Convert to fraction form
    423,128.02/634,380.99 = 201,667.54/x
  3. Step 3: Cross multiply
    423,128.02x = 634,380.99 × 201,667.54
  4. Step 4: Simplify right side
    423,128.02x = 127,934,053,676.07
  5. Step 5: Solve for x
    x = 127,934,053,676.07/423,128.02
  6. Step 6: Final answer
    x = 302,353.06

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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.