Home / 291,312.36-402,018.66-163,992.60

Finding the Fourth Proportional to 291,312.36, 402,018.66 and 163,992.60

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Solution

The fourth proportional to 291,312.36, 402,018.66 and 163,992.60 is: 226,314.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,312.36 : 402,018.66 = 163,992.60 : x
  2. Step 2: Convert to fraction form
    291,312.36/402,018.66 = 163,992.60/x
  3. Step 3: Cross multiply
    291,312.36x = 402,018.66 × 163,992.60
  4. Step 4: Simplify right side
    291,312.36x = 65,928,085,301.92
  5. Step 5: Solve for x
    x = 65,928,085,301.92/291,312.36
  6. Step 6: Final answer
    x = 226,314.07

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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.