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Finding the Fourth Proportional to 245,386.86, 338,423.94 and 169,027.74

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Solution

The fourth proportional to 245,386.86, 338,423.94 and 169,027.74 is: 233,113.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,386.86 : 338,423.94 = 169,027.74 : x
  2. Step 2: Convert to fraction form
    245,386.86/338,423.94 = 169,027.74/x
  3. Step 3: Cross multiply
    245,386.86x = 338,423.94 × 169,027.74
  4. Step 4: Simplify right side
    245,386.86x = 57,203,033,740.10
  5. Step 5: Solve for x
    x = 57,203,033,740.10/245,386.86
  6. Step 6: Final answer
    x = 233,113.68

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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.