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Finding the Fourth Proportional to 245,341.90, 338,573.69 and 136,447.77

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Solution

The fourth proportional to 245,341.90, 338,573.69 and 136,447.77 is: 188,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,341.90 : 338,573.69 = 136,447.77 : x
  2. Step 2: Convert to fraction form
    245,341.90/338,573.69 = 136,447.77/x
  3. Step 3: Cross multiply
    245,341.90x = 338,573.69 × 136,447.77
  4. Step 4: Simplify right side
    245,341.90x = 46,197,624,981.17
  5. Step 5: Solve for x
    x = 46,197,624,981.17/245,341.90
  6. Step 6: Final answer
    x = 188,298.96

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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.