Home / 438,927.56-605,718.16-245,335.01

Finding the Fourth Proportional to 438,927.56, 605,718.16 and 245,335.01

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Solution

The fourth proportional to 438,927.56, 605,718.16 and 245,335.01 is: 338,561.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,927.56 : 605,718.16 = 245,335.01 : x
  2. Step 2: Convert to fraction form
    438,927.56/605,718.16 = 245,335.01/x
  3. Step 3: Cross multiply
    438,927.56x = 605,718.16 × 245,335.01
  4. Step 4: Simplify right side
    438,927.56x = 148,603,870,840.78
  5. Step 5: Solve for x
    x = 148,603,870,840.78/438,927.56
  6. Step 6: Final answer
    x = 338,561.27

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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.