Home / 218,308.07-301,165.57-157,782.85

Finding the Fourth Proportional to 218,308.07, 301,165.57 and 157,782.85

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Solution

The fourth proportional to 218,308.07, 301,165.57 and 157,782.85 is: 217,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,308.07 : 301,165.57 = 157,782.85 : x
  2. Step 2: Convert to fraction form
    218,308.07/301,165.57 = 157,782.85/x
  3. Step 3: Cross multiply
    218,308.07x = 301,165.57 × 157,782.85
  4. Step 4: Simplify right side
    218,308.07x = 47,518,761,400.79
  5. Step 5: Solve for x
    x = 47,518,761,400.79/218,308.07
  6. Step 6: Final answer
    x = 217,668.37

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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.