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Finding the Fourth Proportional to 258,853.05, 357,216.48 and 145,675.80

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Solution

The fourth proportional to 258,853.05, 357,216.48 and 145,675.80 is: 201,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,853.05 : 357,216.48 = 145,675.80 : x
  2. Step 2: Convert to fraction form
    258,853.05/357,216.48 = 145,675.80/x
  3. Step 3: Cross multiply
    258,853.05x = 357,216.48 × 145,675.80
  4. Step 4: Simplify right side
    258,853.05x = 52,037,796,497.18
  5. Step 5: Solve for x
    x = 52,037,796,497.18/258,853.05
  6. Step 6: Final answer
    x = 201,032.19

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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.