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Finding the Fourth Proportional to 258,998.78, 357,366.32 and 151,548.74

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Solution

The fourth proportional to 258,998.78, 357,366.32 and 151,548.74 is: 209,106.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,998.78 : 357,366.32 = 151,548.74 : x
  2. Step 2: Convert to fraction form
    258,998.78/357,366.32 = 151,548.74/x
  3. Step 3: Cross multiply
    258,998.78x = 357,366.32 × 151,548.74
  4. Step 4: Simplify right side
    258,998.78x = 54,158,412,969.86
  5. Step 5: Solve for x
    x = 54,158,412,969.86/258,998.78
  6. Step 6: Final answer
    x = 209,106.83

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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.