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Finding the Fourth Proportional to 289,888.58, 399,970.11 and 167,350.94

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Solution

The fourth proportional to 289,888.58, 399,970.11 and 167,350.94 is: 230,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,888.58 : 399,970.11 = 167,350.94 : x
  2. Step 2: Convert to fraction form
    289,888.58/399,970.11 = 167,350.94/x
  3. Step 3: Cross multiply
    289,888.58x = 399,970.11 × 167,350.94
  4. Step 4: Simplify right side
    289,888.58x = 66,935,373,880.40
  5. Step 5: Solve for x
    x = 66,935,373,880.40/289,888.58
  6. Step 6: Final answer
    x = 230,900.35

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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.