Home / 402,416.26-555,365.33-230,388.18

Finding the Fourth Proportional to 402,416.26, 555,365.33 and 230,388.18

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Solution

The fourth proportional to 402,416.26, 555,365.33 and 230,388.18 is: 317,953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,416.26 : 555,365.33 = 230,388.18 : x
  2. Step 2: Convert to fraction form
    402,416.26/555,365.33 = 230,388.18/x
  3. Step 3: Cross multiply
    402,416.26x = 555,365.33 × 230,388.18
  4. Step 4: Simplify right side
    402,416.26x = 127,949,607,613.80
  5. Step 5: Solve for x
    x = 127,949,607,613.80/402,416.26
  6. Step 6: Final answer
    x = 317,953.37

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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.