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Finding the Fourth Proportional to 219,486.16, 328,885.80 and 169,688.98

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Solution

The fourth proportional to 219,486.16, 328,885.80 and 169,688.98 is: 254,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,486.16 : 328,885.80 = 169,688.98 : x
  2. Step 2: Convert to fraction form
    219,486.16/328,885.80 = 169,688.98/x
  3. Step 3: Cross multiply
    219,486.16x = 328,885.80 × 169,688.98
  4. Step 4: Simplify right side
    219,486.16x = 55,808,295,938.48
  5. Step 5: Solve for x
    x = 55,808,295,938.48/219,486.16
  6. Step 6: Final answer
    x = 254,267.95

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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.