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Finding the Fourth Proportional to 638,017.75, 957,030.27 and 164,670.76

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Solution

The fourth proportional to 638,017.75, 957,030.27 and 164,670.76 is: 247,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,017.75 : 957,030.27 = 164,670.76 : x
  2. Step 2: Convert to fraction form
    638,017.75/957,030.27 = 164,670.76/x
  3. Step 3: Cross multiply
    638,017.75x = 957,030.27 × 164,670.76
  4. Step 4: Simplify right side
    638,017.75x = 157,594,901,903.91
  5. Step 5: Solve for x
    x = 157,594,901,903.91/638,017.75
  6. Step 6: Final answer
    x = 247,007.08

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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.