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Finding the Fourth Proportional to 438,021.22, 604,463.16 and 247,096.12

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Solution

The fourth proportional to 438,021.22, 604,463.16 and 247,096.12 is: 340,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,021.22 : 604,463.16 = 247,096.12 : x
  2. Step 2: Convert to fraction form
    438,021.22/604,463.16 = 247,096.12/x
  3. Step 3: Cross multiply
    438,021.22x = 604,463.16 × 247,096.12
  4. Step 4: Simplify right side
    438,021.22x = 149,360,501,518.94
  5. Step 5: Solve for x
    x = 149,360,501,518.94/438,021.22
  6. Step 6: Final answer
    x = 340,989.19

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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.