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Finding the Fourth Proportional to 258,889.50, 357,276.15 and 158,268.06

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Solution

The fourth proportional to 258,889.50, 357,276.15 and 158,268.06 is: 218,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,889.50 : 357,276.15 = 158,268.06 : x
  2. Step 2: Convert to fraction form
    258,889.50/357,276.15 = 158,268.06/x
  3. Step 3: Cross multiply
    258,889.50x = 357,276.15 × 158,268.06
  4. Step 4: Simplify right side
    258,889.50x = 56,545,403,144.77
  5. Step 5: Solve for x
    x = 56,545,403,144.77/258,889.50
  6. Step 6: Final answer
    x = 218,415.20

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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.