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Finding the Fourth Proportional to 259,239.64, 357,797.12 and 151,803.40

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Solution

The fourth proportional to 259,239.64, 357,797.12 and 151,803.40 is: 209,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,239.64 : 357,797.12 = 151,803.40 : x
  2. Step 2: Convert to fraction form
    259,239.64/357,797.12 = 151,803.40/x
  3. Step 3: Cross multiply
    259,239.64x = 357,797.12 × 151,803.40
  4. Step 4: Simplify right side
    259,239.64x = 54,314,819,326.21
  5. Step 5: Solve for x
    x = 54,314,819,326.21/259,239.64
  6. Step 6: Final answer
    x = 209,515.87

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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.