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Finding the Fourth Proportional to 367,430.40, 551,180.25 and 142,808.04

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Solution

The fourth proportional to 367,430.40, 551,180.25 and 142,808.04 is: 214,225.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,430.40 : 551,180.25 = 142,808.04 : x
  2. Step 2: Convert to fraction form
    367,430.40/551,180.25 = 142,808.04/x
  3. Step 3: Cross multiply
    367,430.40x = 551,180.25 × 142,808.04
  4. Step 4: Simplify right side
    367,430.40x = 78,712,971,189.21
  5. Step 5: Solve for x
    x = 78,712,971,189.21/367,430.40
  6. Step 6: Final answer
    x = 214,225.53

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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.