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Finding the Fourth Proportional to 359,803.50, 496,572.60 and 208,900.50

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Solution

The fourth proportional to 359,803.50, 496,572.60 and 208,900.50 is: 288,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,803.50 : 496,572.60 = 208,900.50 : x
  2. Step 2: Convert to fraction form
    359,803.50/496,572.60 = 208,900.50/x
  3. Step 3: Cross multiply
    359,803.50x = 496,572.60 × 208,900.50
  4. Step 4: Simplify right side
    359,803.50x = 103,734,264,426.30
  5. Step 5: Solve for x
    x = 103,734,264,426.30/359,803.50
  6. Step 6: Final answer
    x = 288,308.10

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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.