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Finding the Fourth Proportional to 359,699.83, 496,267.88 and 256,350.31

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Solution

The fourth proportional to 359,699.83, 496,267.88 and 256,350.31 is: 353,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,699.83 : 496,267.88 = 256,350.31 : x
  2. Step 2: Convert to fraction form
    359,699.83/496,267.88 = 256,350.31/x
  3. Step 3: Cross multiply
    359,699.83x = 496,267.88 × 256,350.31
  4. Step 4: Simplify right side
    359,699.83x = 127,218,421,117.95
  5. Step 5: Solve for x
    x = 127,218,421,117.95/359,699.83
  6. Step 6: Final answer
    x = 353,679.41

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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.