Home / 379,383.48-523,543.98-209,615.16

Finding the Fourth Proportional to 379,383.48, 523,543.98 and 209,615.16

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Solution

The fourth proportional to 379,383.48, 523,543.98 and 209,615.16 is: 289,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,383.48 : 523,543.98 = 209,615.16 : x
  2. Step 2: Convert to fraction form
    379,383.48/523,543.98 = 209,615.16/x
  3. Step 3: Cross multiply
    379,383.48x = 523,543.98 × 209,615.16
  4. Step 4: Simplify right side
    379,383.48x = 109,742,755,134.74
  5. Step 5: Solve for x
    x = 109,742,755,134.74/379,383.48
  6. Step 6: Final answer
    x = 289,266.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.