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Finding the Fourth Proportional to 359,430.39, 496,012.53 and 198,295.47

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Solution

The fourth proportional to 359,430.39, 496,012.53 and 198,295.47 is: 273,646.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,430.39 : 496,012.53 = 198,295.47 : x
  2. Step 2: Convert to fraction form
    359,430.39/496,012.53 = 198,295.47/x
  3. Step 3: Cross multiply
    359,430.39x = 496,012.53 × 198,295.47
  4. Step 4: Simplify right side
    359,430.39x = 98,357,037,762.24
  5. Step 5: Solve for x
    x = 98,357,037,762.24/359,430.39
  6. Step 6: Final answer
    x = 273,646.97

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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.