Home / 257,378.77-385,936.51-107,578.18

Finding the Fourth Proportional to 257,378.77, 385,936.51 and 107,578.18

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Solution

The fourth proportional to 257,378.77, 385,936.51 and 107,578.18 is: 161,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,378.77 : 385,936.51 = 107,578.18 : x
  2. Step 2: Convert to fraction form
    257,378.77/385,936.51 = 107,578.18/x
  3. Step 3: Cross multiply
    257,378.77x = 385,936.51 × 107,578.18
  4. Step 4: Simplify right side
    257,378.77x = 41,518,347,341.35
  5. Step 5: Solve for x
    x = 41,518,347,341.35/257,378.77
  6. Step 6: Final answer
    x = 161,312.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.