Home / 291,318.16-402,012.87-162,256.23

Finding the Fourth Proportional to 291,318.16, 402,012.87 and 162,256.23

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Solution

The fourth proportional to 291,318.16, 402,012.87 and 162,256.23 is: 223,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,318.16 : 402,012.87 = 162,256.23 : x
  2. Step 2: Convert to fraction form
    291,318.16/402,012.87 = 162,256.23/x
  3. Step 3: Cross multiply
    291,318.16x = 402,012.87 × 162,256.23
  4. Step 4: Simplify right side
    291,318.16x = 65,229,091,502.65
  5. Step 5: Solve for x
    x = 65,229,091,502.65/291,318.16
  6. Step 6: Final answer
    x = 223,910.15

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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.