Home / 291,919.36-402,849.32-157,783.36

Finding the Fourth Proportional to 291,919.36, 402,849.32 and 157,783.36

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Solution

The fourth proportional to 291,919.36, 402,849.32 and 157,783.36 is: 217,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,919.36 : 402,849.32 = 157,783.36 : x
  2. Step 2: Convert to fraction form
    291,919.36/402,849.32 = 157,783.36/x
  3. Step 3: Cross multiply
    291,919.36x = 402,849.32 × 157,783.36
  4. Step 4: Simplify right side
    291,919.36x = 63,562,919,283.32
  5. Step 5: Solve for x
    x = 63,562,919,283.32/291,919.36
  6. Step 6: Final answer
    x = 217,741.36

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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.