Home / 291,621.52-402,220.38-258,955.48

Finding the Fourth Proportional to 291,621.52, 402,220.38 and 258,955.48

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Solution

The fourth proportional to 291,621.52, 402,220.38 and 258,955.48 is: 357,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,621.52 : 402,220.38 = 258,955.48 : x
  2. Step 2: Convert to fraction form
    291,621.52/402,220.38 = 258,955.48/x
  3. Step 3: Cross multiply
    291,621.52x = 402,220.38 × 258,955.48
  4. Step 4: Simplify right side
    291,621.52x = 104,157,171,568.68
  5. Step 5: Solve for x
    x = 104,157,171,568.68/291,621.52
  6. Step 6: Final answer
    x = 357,165.59

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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.