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Finding the Fourth Proportional to 450,140.96, 621,170.16 and 248,924

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Solution

The fourth proportional to 450,140.96, 621,170.16 and 248,924 is: 343,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,140.96 : 621,170.16 = 248,924 : x
  2. Step 2: Convert to fraction form
    450,140.96/621,170.16 = 248,924/x
  3. Step 3: Cross multiply
    450,140.96x = 621,170.16 × 248,924
  4. Step 4: Simplify right side
    450,140.96x = 154,624,160,907.84
  5. Step 5: Solve for x
    x = 154,624,160,907.84/450,140.96
  6. Step 6: Final answer
    x = 343,501.65

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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.