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Finding the Fourth Proportional to 289,592.02, 399,639.63 and 160,531.88

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Solution

The fourth proportional to 289,592.02, 399,639.63 and 160,531.88 is: 221,535.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,592.02 : 399,639.63 = 160,531.88 : x
  2. Step 2: Convert to fraction form
    289,592.02/399,639.63 = 160,531.88/x
  3. Step 3: Cross multiply
    289,592.02x = 399,639.63 × 160,531.88
  4. Step 4: Simplify right side
    289,592.02x = 64,154,901,126.40
  5. Step 5: Solve for x
    x = 64,154,901,126.40/289,592.02
  6. Step 6: Final answer
    x = 221,535.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.