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Finding the Fourth Proportional to 325,021.40, 487,337.70 and 167,557.40

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Solution

The fourth proportional to 325,021.40, 487,337.70 and 167,557.40 is: 251,235.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,021.40 : 487,337.70 = 167,557.40 : x
  2. Step 2: Convert to fraction form
    325,021.40/487,337.70 = 167,557.40/x
  3. Step 3: Cross multiply
    325,021.40x = 487,337.70 × 167,557.40
  4. Step 4: Simplify right side
    325,021.40x = 81,657,037,933.98
  5. Step 5: Solve for x
    x = 81,657,037,933.98/325,021.40
  6. Step 6: Final answer
    x = 251,235.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.