Home / 258,302.61-356,457.33-143,577.72

Finding the Fourth Proportional to 258,302.61, 356,457.33 and 143,577.72

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Solution

The fourth proportional to 258,302.61, 356,457.33 and 143,577.72 is: 198,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,302.61 : 356,457.33 = 143,577.72 : x
  2. Step 2: Convert to fraction form
    258,302.61/356,457.33 = 143,577.72/x
  3. Step 3: Cross multiply
    258,302.61x = 356,457.33 × 143,577.72
  4. Step 4: Simplify right side
    258,302.61x = 51,179,330,718.69
  5. Step 5: Solve for x
    x = 51,179,330,718.69/258,302.61
  6. Step 6: Final answer
    x = 198,137.10

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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.