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Finding the Fourth Proportional to 359,132.64, 495,580.80 and 197,979.36

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Solution

The fourth proportional to 359,132.64, 495,580.80 and 197,979.36 is: 273,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,132.64 : 495,580.80 = 197,979.36 : x
  2. Step 2: Convert to fraction form
    359,132.64/495,580.80 = 197,979.36/x
  3. Step 3: Cross multiply
    359,132.64x = 495,580.80 × 197,979.36
  4. Step 4: Simplify right side
    359,132.64x = 98,114,769,612.29
  5. Step 5: Solve for x
    x = 98,114,769,612.29/359,132.64
  6. Step 6: Final answer
    x = 273,199.25

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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.