Home / 347,564.40-521,346.60-198,265.20

Finding the Fourth Proportional to 347,564.40, 521,346.60 and 198,265.20

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Solution

The fourth proportional to 347,564.40, 521,346.60 and 198,265.20 is: 297,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,564.40 : 521,346.60 = 198,265.20 : x
  2. Step 2: Convert to fraction form
    347,564.40/521,346.60 = 198,265.20/x
  3. Step 3: Cross multiply
    347,564.40x = 521,346.60 × 198,265.20
  4. Step 4: Simplify right side
    347,564.40x = 103,364,887,918.32
  5. Step 5: Solve for x
    x = 103,364,887,918.32/347,564.40
  6. Step 6: Final answer
    x = 297,397.80

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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.