Home / 347,835.60-521,753.40-214,282.80

Finding the Fourth Proportional to 347,835.60, 521,753.40 and 214,282.80

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Solution

The fourth proportional to 347,835.60, 521,753.40 and 214,282.80 is: 321,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,835.60 : 521,753.40 = 214,282.80 : x
  2. Step 2: Convert to fraction form
    347,835.60/521,753.40 = 214,282.80/x
  3. Step 3: Cross multiply
    347,835.60x = 521,753.40 × 214,282.80
  4. Step 4: Simplify right side
    347,835.60x = 111,802,779,461.52
  5. Step 5: Solve for x
    x = 111,802,779,461.52/347,835.60
  6. Step 6: Final answer
    x = 321,424.20

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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.