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Finding the Fourth Proportional to 259,754.49, 358,457.68 and 145,034.91

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Solution

The fourth proportional to 259,754.49, 358,457.68 and 145,034.91 is: 200,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,754.49 : 358,457.68 = 145,034.91 : x
  2. Step 2: Convert to fraction form
    259,754.49/358,457.68 = 145,034.91/x
  3. Step 3: Cross multiply
    259,754.49x = 358,457.68 × 145,034.91
  4. Step 4: Simplify right side
    259,754.49x = 51,988,877,357.61
  5. Step 5: Solve for x
    x = 51,988,877,357.61/259,754.49
  6. Step 6: Final answer
    x = 200,146.21

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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.