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Finding the Fourth Proportional to 289,567.84, 399,599.76 and 162,245.92

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Solution

The fourth proportional to 289,567.84, 399,599.76 and 162,245.92 is: 223,897.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,567.84 : 399,599.76 = 162,245.92 : x
  2. Step 2: Convert to fraction form
    289,567.84/399,599.76 = 162,245.92/x
  3. Step 3: Cross multiply
    289,567.84x = 399,599.76 × 162,245.92
  4. Step 4: Simplify right side
    289,567.84x = 64,833,430,692.98
  5. Step 5: Solve for x
    x = 64,833,430,692.98/289,567.84
  6. Step 6: Final answer
    x = 223,897.21

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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.