Home / 291,278.32-402,029.64-190,618

Finding the Fourth Proportional to 291,278.32, 402,029.64 and 190,618

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Solution

The fourth proportional to 291,278.32, 402,029.64 and 190,618 is: 263,095.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,278.32 : 402,029.64 = 190,618 : x
  2. Step 2: Convert to fraction form
    291,278.32/402,029.64 = 190,618/x
  3. Step 3: Cross multiply
    291,278.32x = 402,029.64 × 190,618
  4. Step 4: Simplify right side
    291,278.32x = 76,634,085,917.52
  5. Step 5: Solve for x
    x = 76,634,085,917.52/291,278.32
  6. Step 6: Final answer
    x = 263,095.74

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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.