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Finding the Fourth Proportional to 258,352.59, 356,483.49 and 143,628.04

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Solution

The fourth proportional to 258,352.59, 356,483.49 and 143,628.04 is: 198,182.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,352.59 : 356,483.49 = 143,628.04 : x
  2. Step 2: Convert to fraction form
    258,352.59/356,483.49 = 143,628.04/x
  3. Step 3: Cross multiply
    258,352.59x = 356,483.49 × 143,628.04
  4. Step 4: Simplify right side
    258,352.59x = 51,201,024,961.06
  5. Step 5: Solve for x
    x = 51,201,024,961.06/258,352.59
  6. Step 6: Final answer
    x = 198,182.74

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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.