Home / 287,262.54-430,923.30-109,918.71

Finding the Fourth Proportional to 287,262.54, 430,923.30 and 109,918.71

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Solution

The fourth proportional to 287,262.54, 430,923.30 and 109,918.71 is: 164,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,262.54 : 430,923.30 = 109,918.71 : x
  2. Step 2: Convert to fraction form
    287,262.54/430,923.30 = 109,918.71/x
  3. Step 3: Cross multiply
    287,262.54x = 430,923.30 × 109,918.71
  4. Step 4: Simplify right side
    287,262.54x = 47,366,533,244.94
  5. Step 5: Solve for x
    x = 47,366,533,244.94/287,262.54
  6. Step 6: Final answer
    x = 164,889.35

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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.