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Finding the Fourth Proportional to 274,495.84, 378,804.18 and 153,637.12

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Solution

The fourth proportional to 274,495.84, 378,804.18 and 153,637.12 is: 212,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,495.84 : 378,804.18 = 153,637.12 : x
  2. Step 2: Convert to fraction form
    274,495.84/378,804.18 = 153,637.12/x
  3. Step 3: Cross multiply
    274,495.84x = 378,804.18 × 153,637.12
  4. Step 4: Simplify right side
    274,495.84x = 58,198,383,259.16
  5. Step 5: Solve for x
    x = 58,198,383,259.16/274,495.84
  6. Step 6: Final answer
    x = 212,019.18

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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.