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Finding the Fourth Proportional to 298,019.40, 411,264.54 and 162,053.44

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Solution

The fourth proportional to 298,019.40, 411,264.54 and 162,053.44 is: 223,632.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,019.40 : 411,264.54 = 162,053.44 : x
  2. Step 2: Convert to fraction form
    298,019.40/411,264.54 = 162,053.44/x
  3. Step 3: Cross multiply
    298,019.40x = 411,264.54 × 162,053.44
  4. Step 4: Simplify right side
    298,019.40x = 66,646,833,457.02
  5. Step 5: Solve for x
    x = 66,646,833,457.02/298,019.40
  6. Step 6: Final answer
    x = 223,632.53

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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.