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Finding the Fourth Proportional to 359,259.32, 495,774.86 and 198,121.08

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Solution

The fourth proportional to 359,259.32, 495,774.86 and 198,121.08 is: 273,405.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,259.32 : 495,774.86 = 198,121.08 : x
  2. Step 2: Convert to fraction form
    359,259.32/495,774.86 = 198,121.08/x
  3. Step 3: Cross multiply
    359,259.32x = 495,774.86 × 198,121.08
  4. Step 4: Simplify right side
    359,259.32x = 98,223,450,700.05
  5. Step 5: Solve for x
    x = 98,223,450,700.05/359,259.32
  6. Step 6: Final answer
    x = 273,405.44

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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.