Home / 347,837.60-521,756.40-98,519.60

Finding the Fourth Proportional to 347,837.60, 521,756.40 and 98,519.60

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Solution

The fourth proportional to 347,837.60, 521,756.40 and 98,519.60 is: 147,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,837.60 : 521,756.40 = 98,519.60 : x
  2. Step 2: Convert to fraction form
    347,837.60/521,756.40 = 98,519.60/x
  3. Step 3: Cross multiply
    347,837.60x = 521,756.40 × 98,519.60
  4. Step 4: Simplify right side
    347,837.60x = 51,403,231,825.44
  5. Step 5: Solve for x
    x = 51,403,231,825.44/347,837.60
  6. Step 6: Final answer
    x = 147,779.40

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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.