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Finding the Fourth Proportional to 245,352.80, 368,029.20 and 210,360.80

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Solution

The fourth proportional to 245,352.80, 368,029.20 and 210,360.80 is: 315,541.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,352.80 : 368,029.20 = 210,360.80 : x
  2. Step 2: Convert to fraction form
    245,352.80/368,029.20 = 210,360.80/x
  3. Step 3: Cross multiply
    245,352.80x = 368,029.20 × 210,360.80
  4. Step 4: Simplify right side
    245,352.80x = 77,418,916,935.36
  5. Step 5: Solve for x
    x = 77,418,916,935.36/245,352.80
  6. Step 6: Final answer
    x = 315,541.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.