Home / 347,825.60-521,654.40-145,312.26

Finding the Fourth Proportional to 347,825.60, 521,654.40 and 145,312.26

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Solution

The fourth proportional to 347,825.60, 521,654.40 and 145,312.26 is: 217,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,825.60 : 521,654.40 = 145,312.26 : x
  2. Step 2: Convert to fraction form
    347,825.60/521,654.40 = 145,312.26/x
  3. Step 3: Cross multiply
    347,825.60x = 521,654.40 × 145,312.26
  4. Step 4: Simplify right side
    347,825.60x = 75,802,779,802.94
  5. Step 5: Solve for x
    x = 75,802,779,802.94/347,825.60
  6. Step 6: Final answer
    x = 217,933.30

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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.