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Finding the Fourth Proportional to 359,130.90, 495,604.47 and 197,991.72

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Solution

The fourth proportional to 359,130.90, 495,604.47 and 197,991.72 is: 273,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,130.90 : 495,604.47 = 197,991.72 : x
  2. Step 2: Convert to fraction form
    359,130.90/495,604.47 = 197,991.72/x
  3. Step 3: Cross multiply
    359,130.90x = 495,604.47 × 197,991.72
  4. Step 4: Simplify right side
    359,130.90x = 98,125,581,454.99
  5. Step 5: Solve for x
    x = 98,125,581,454.99/359,130.90
  6. Step 6: Final answer
    x = 273,230.68

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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.