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Finding the Fourth Proportional to 444,480, 613,386.72 and 243,280.32

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Solution

The fourth proportional to 444,480, 613,386.72 and 243,280.32 is: 335,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,480 : 613,386.72 = 243,280.32 : x
  2. Step 2: Convert to fraction form
    444,480/613,386.72 = 243,280.32/x
  3. Step 3: Cross multiply
    444,480x = 613,386.72 × 243,280.32
  4. Step 4: Simplify right side
    444,480x = 149,224,917,525.35
  5. Step 5: Solve for x
    x = 149,224,917,525.35/444,480
  6. Step 6: Final answer
    x = 335,729.21

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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.