Home / 402,080.07-554,880.15-218,326.45

Finding the Fourth Proportional to 402,080.07, 554,880.15 and 218,326.45

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Solution

The fourth proportional to 402,080.07, 554,880.15 and 218,326.45 is: 301,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,080.07 : 554,880.15 = 218,326.45 : x
  2. Step 2: Convert to fraction form
    402,080.07/554,880.15 = 218,326.45/x
  3. Step 3: Cross multiply
    402,080.07x = 554,880.15 × 218,326.45
  4. Step 4: Simplify right side
    402,080.07x = 121,145,013,324.97
  5. Step 5: Solve for x
    x = 121,145,013,324.97/402,080.07
  6. Step 6: Final answer
    x = 301,295.74

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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.