Home / 358,619.28-494,878.64-205,547.74

Finding the Fourth Proportional to 358,619.28, 494,878.64 and 205,547.74

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Solution

The fourth proportional to 358,619.28, 494,878.64 and 205,547.74 is: 283,646.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,619.28 : 494,878.64 = 205,547.74 : x
  2. Step 2: Convert to fraction form
    358,619.28/494,878.64 = 205,547.74/x
  3. Step 3: Cross multiply
    358,619.28x = 494,878.64 × 205,547.74
  4. Step 4: Simplify right side
    358,619.28x = 101,721,186,026.27
  5. Step 5: Solve for x
    x = 101,721,186,026.27/358,619.28
  6. Step 6: Final answer
    x = 283,646.73

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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.