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Finding the Fourth Proportional to 289,569.84, 399,602.52 and 162,247.92

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Solution

The fourth proportional to 289,569.84, 399,602.52 and 162,247.92 is: 223,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,569.84 : 399,602.52 = 162,247.92 : x
  2. Step 2: Convert to fraction form
    289,569.84/399,602.52 = 162,247.92/x
  3. Step 3: Cross multiply
    289,569.84x = 399,602.52 × 162,247.92
  4. Step 4: Simplify right side
    289,569.84x = 64,834,677,696.76
  5. Step 5: Solve for x
    x = 64,834,677,696.76/289,569.84
  6. Step 6: Final answer
    x = 223,899.97

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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.