Home / 380,895.45-525,874.86-245,165.28

Finding the Fourth Proportional to 380,895.45, 525,874.86 and 245,165.28

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Solution

The fourth proportional to 380,895.45, 525,874.86 and 245,165.28 is: 338,482.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,895.45 : 525,874.86 = 245,165.28 : x
  2. Step 2: Convert to fraction form
    380,895.45/525,874.86 = 245,165.28/x
  3. Step 3: Cross multiply
    380,895.45x = 525,874.86 × 245,165.28
  4. Step 4: Simplify right side
    380,895.45x = 128,926,257,296.86
  5. Step 5: Solve for x
    x = 128,926,257,296.86/380,895.45
  6. Step 6: Final answer
    x = 338,482.01

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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.