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Finding the Fourth Proportional to 315,497.88, 435,335.71 and 186,418.37

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Solution

The fourth proportional to 315,497.88, 435,335.71 and 186,418.37 is: 257,227.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,497.88 : 435,335.71 = 186,418.37 : x
  2. Step 2: Convert to fraction form
    315,497.88/435,335.71 = 186,418.37/x
  3. Step 3: Cross multiply
    315,497.88x = 435,335.71 × 186,418.37
  4. Step 4: Simplify right side
    315,497.88x = 81,154,573,460.99
  5. Step 5: Solve for x
    x = 81,154,573,460.99/315,497.88
  6. Step 6: Final answer
    x = 257,227.00

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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.