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Finding the Fourth Proportional to 245,457.96, 338,736.59 and 143,492.13

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Solution

The fourth proportional to 245,457.96, 338,736.59 and 143,492.13 is: 198,021.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,457.96 : 338,736.59 = 143,492.13 : x
  2. Step 2: Convert to fraction form
    245,457.96/338,736.59 = 143,492.13/x
  3. Step 3: Cross multiply
    245,457.96x = 338,736.59 × 143,492.13
  4. Step 4: Simplify right side
    245,457.96x = 48,606,034,090.58
  5. Step 5: Solve for x
    x = 48,606,034,090.58/245,457.96
  6. Step 6: Final answer
    x = 198,021.83

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1.5x scale

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.