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Finding the Fourth Proportional to 287,296.97, 430,801.28 and 167,392.67

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Solution

The fourth proportional to 287,296.97, 430,801.28 and 167,392.67 is: 251,005.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,296.97 : 430,801.28 = 167,392.67 : x
  2. Step 2: Convert to fraction form
    287,296.97/430,801.28 = 167,392.67/x
  3. Step 3: Cross multiply
    287,296.97x = 430,801.28 × 167,392.67
  4. Step 4: Simplify right side
    287,296.97x = 72,112,975,661.65
  5. Step 5: Solve for x
    x = 72,112,975,661.65/287,296.97
  6. Step 6: Final answer
    x = 251,005.00

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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.