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Finding the Fourth Proportional to 219,485.16, 328,884.30 and 169,687.98

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Solution

The fourth proportional to 219,485.16, 328,884.30 and 169,687.98 is: 254,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,485.16 : 328,884.30 = 169,687.98 : x
  2. Step 2: Convert to fraction form
    219,485.16/328,884.30 = 169,687.98/x
  3. Step 3: Cross multiply
    219,485.16x = 328,884.30 × 169,687.98
  4. Step 4: Simplify right side
    219,485.16x = 55,807,712,520.71
  5. Step 5: Solve for x
    x = 55,807,712,520.71/219,485.16
  6. Step 6: Final answer
    x = 254,266.45

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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.