Home / 643,210.30-964,861.89-169,889.50

Finding the Fourth Proportional to 643,210.30, 964,861.89 and 169,889.50

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Solution

The fourth proportional to 643,210.30, 964,861.89 and 169,889.50 is: 254,846.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,210.30 : 964,861.89 = 169,889.50 : x
  2. Step 2: Convert to fraction form
    643,210.30/964,861.89 = 169,889.50/x
  3. Step 3: Cross multiply
    643,210.30x = 964,861.89 × 169,889.50
  4. Step 4: Simplify right side
    643,210.30x = 163,919,904,061.16
  5. Step 5: Solve for x
    x = 163,919,904,061.16/643,210.30
  6. Step 6: Final answer
    x = 254,846.52

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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.