Home / 291,837.75-402,736.10-157,701.75

Finding the Fourth Proportional to 291,837.75, 402,736.10 and 157,701.75

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Solution

The fourth proportional to 291,837.75, 402,736.10 and 157,701.75 is: 217,628.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,837.75 : 402,736.10 = 157,701.75 : x
  2. Step 2: Convert to fraction form
    291,837.75/402,736.10 = 157,701.75/x
  3. Step 3: Cross multiply
    291,837.75x = 402,736.10 × 157,701.75
  4. Step 4: Simplify right side
    291,837.75x = 63,512,186,969.67
  5. Step 5: Solve for x
    x = 63,512,186,969.67/291,837.75
  6. Step 6: Final answer
    x = 217,628.42

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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.