Home / 225,711.51-311,430.72-153,124.31

Finding the Fourth Proportional to 225,711.51, 311,430.72 and 153,124.31

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Solution

The fourth proportional to 225,711.51, 311,430.72 and 153,124.31 is: 211,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,711.51 : 311,430.72 = 153,124.31 : x
  2. Step 2: Convert to fraction form
    225,711.51/311,430.72 = 153,124.31/x
  3. Step 3: Cross multiply
    225,711.51x = 311,430.72 × 153,124.31
  4. Step 4: Simplify right side
    225,711.51x = 47,687,613,713.80
  5. Step 5: Solve for x
    x = 47,687,613,713.80/225,711.51
  6. Step 6: Final answer
    x = 211,276.83

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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.