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Finding the Fourth Proportional to 359,148.38, 495,647.10 and 198,003.18

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Solution

The fourth proportional to 359,148.38, 495,647.10 and 198,003.18 is: 273,256.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,148.38 : 495,647.10 = 198,003.18 : x
  2. Step 2: Convert to fraction form
    359,148.38/495,647.10 = 198,003.18/x
  3. Step 3: Cross multiply
    359,148.38x = 495,647.10 × 198,003.18
  4. Step 4: Simplify right side
    359,148.38x = 98,139,703,816.45
  5. Step 5: Solve for x
    x = 98,139,703,816.45/359,148.38
  6. Step 6: Final answer
    x = 273,256.71

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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.