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Finding the Fourth Proportional to 599,420, 899,130 and 156,188

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Solution

The fourth proportional to 599,420, 899,130 and 156,188 is: 234,282

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,420 : 899,130 = 156,188 : x
  2. Step 2: Convert to fraction form
    599,420/899,130 = 156,188/x
  3. Step 3: Cross multiply
    599,420x = 899,130 × 156,188
  4. Step 4: Simplify right side
    599,420x = 140,433,316,440
  5. Step 5: Solve for x
    x = 140,433,316,440/599,420
  6. Step 6: Final answer
    x = 234,282

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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.