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Finding the Fourth Proportional to 375,669.19, 518,260.56 and 248,521.87

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Solution

The fourth proportional to 375,669.19, 518,260.56 and 248,521.87 is: 342,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,669.19 : 518,260.56 = 248,521.87 : x
  2. Step 2: Convert to fraction form
    375,669.19/518,260.56 = 248,521.87/x
  3. Step 3: Cross multiply
    375,669.19x = 518,260.56 × 248,521.87
  4. Step 4: Simplify right side
    375,669.19x = 128,799,083,518.45
  5. Step 5: Solve for x
    x = 128,799,083,518.45/375,669.19
  6. Step 6: Final answer
    x = 342,852.40

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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.