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Finding the Fourth Proportional to 259,135.83, 357,485.27 and 151,639.92

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Solution

The fourth proportional to 259,135.83, 357,485.27 and 151,639.92 is: 209,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,135.83 : 357,485.27 = 151,639.92 : x
  2. Step 2: Convert to fraction form
    259,135.83/357,485.27 = 151,639.92/x
  3. Step 3: Cross multiply
    259,135.83x = 357,485.27 × 151,639.92
  4. Step 4: Simplify right side
    259,135.83x = 54,209,036,985.78
  5. Step 5: Solve for x
    x = 54,209,036,985.78/259,135.83
  6. Step 6: Final answer
    x = 209,191.59

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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.