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Finding the Fourth Proportional to 359,646.51, 496,309.70 and 198,501.55

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Solution

The fourth proportional to 359,646.51, 496,309.70 and 198,501.55 is: 273,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,646.51 : 496,309.70 = 198,501.55 : x
  2. Step 2: Convert to fraction form
    359,646.51/496,309.70 = 198,501.55/x
  3. Step 3: Cross multiply
    359,646.51x = 496,309.70 × 198,501.55
  4. Step 4: Simplify right side
    359,646.51x = 98,518,245,102.30
  5. Step 5: Solve for x
    x = 98,518,245,102.30/359,646.51
  6. Step 6: Final answer
    x = 273,930.77

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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.