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Finding the Fourth Proportional to 298,483.40, 411,893.70 and 162,513.92

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Solution

The fourth proportional to 298,483.40, 411,893.70 and 162,513.92 is: 224,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,483.40 : 411,893.70 = 162,513.92 : x
  2. Step 2: Convert to fraction form
    298,483.40/411,893.70 = 162,513.92/x
  3. Step 3: Cross multiply
    298,483.40x = 411,893.70 × 162,513.92
  4. Step 4: Simplify right side
    298,483.40x = 66,938,459,810.30
  5. Step 5: Solve for x
    x = 66,938,459,810.30/298,483.40
  6. Step 6: Final answer
    x = 224,261.92

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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.