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Finding the Fourth Proportional to 359,145.63, 495,628.47 and 198,007.47

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Solution

The fourth proportional to 359,145.63, 495,628.47 and 198,007.47 is: 273,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,145.63 : 495,628.47 = 198,007.47 : x
  2. Step 2: Convert to fraction form
    359,145.63/495,628.47 = 198,007.47/x
  3. Step 3: Cross multiply
    359,145.63x = 495,628.47 × 198,007.47
  4. Step 4: Simplify right side
    359,145.63x = 98,138,139,404.67
  5. Step 5: Solve for x
    x = 98,138,139,404.67/359,145.63
  6. Step 6: Final answer
    x = 273,254.44

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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.