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Finding the Fourth Proportional to 245,457.84, 338,733.80 and 136,563.77

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Solution

The fourth proportional to 245,457.84, 338,733.80 and 136,563.77 is: 188,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,457.84 : 338,733.80 = 136,563.77 : x
  2. Step 2: Convert to fraction form
    245,457.84/338,733.80 = 136,563.77/x
  3. Step 3: Cross multiply
    245,457.84x = 338,733.80 × 136,563.77
  4. Step 4: Simplify right side
    245,457.84x = 46,258,765,430.56
  5. Step 5: Solve for x
    x = 46,258,765,430.56/245,457.84
  6. Step 6: Final answer
    x = 188,459.10

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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.