Home / 423,010.03-634,518.30-142,523.23

Finding the Fourth Proportional to 423,010.03, 634,518.30 and 142,523.23

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Solution

The fourth proportional to 423,010.03, 634,518.30 and 142,523.23 is: 213,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,010.03 : 634,518.30 = 142,523.23 : x
  2. Step 2: Convert to fraction form
    423,010.03/634,518.30 = 142,523.23/x
  3. Step 3: Cross multiply
    423,010.03x = 634,518.30 × 142,523.23
  4. Step 4: Simplify right side
    423,010.03x = 90,433,597,610.11
  5. Step 5: Solve for x
    x = 90,433,597,610.11/423,010.03
  6. Step 6: Final answer
    x = 213,785.94

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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.