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Finding the Fourth Proportional to 298,391.03, 411,779.16 and 162,424.55

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Solution

The fourth proportional to 298,391.03, 411,779.16 and 162,424.55 is: 224,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,391.03 : 411,779.16 = 162,424.55 : x
  2. Step 2: Convert to fraction form
    298,391.03/411,779.16 = 162,424.55/x
  3. Step 3: Cross multiply
    298,391.03x = 411,779.16 × 162,424.55
  4. Step 4: Simplify right side
    298,391.03x = 66,883,044,762.38
  5. Step 5: Solve for x
    x = 66,883,044,762.38/298,391.03
  6. Step 6: Final answer
    x = 224,145.63

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1.5x scale

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.