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Finding the Fourth Proportional to 268,069.22, 399,165.58 and 258,490.16

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Solution

The fourth proportional to 268,069.22, 399,165.58 and 258,490.16 is: 384,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,069.22 : 399,165.58 = 258,490.16 : x
  2. Step 2: Convert to fraction form
    268,069.22/399,165.58 = 258,490.16/x
  3. Step 3: Cross multiply
    268,069.22x = 399,165.58 × 258,490.16
  4. Step 4: Simplify right side
    268,069.22x = 103,180,374,640.69
  5. Step 5: Solve for x
    x = 103,180,374,640.69/268,069.22
  6. Step 6: Final answer
    x = 384,901.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.