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Finding the Fourth Proportional to 359,349.12, 539,051.04 and 209,604.32

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Solution

The fourth proportional to 359,349.12, 539,051.04 and 209,604.32 is: 314,422.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,349.12 : 539,051.04 = 209,604.32 : x
  2. Step 2: Convert to fraction form
    359,349.12/539,051.04 = 209,604.32/x
  3. Step 3: Cross multiply
    359,349.12x = 539,051.04 × 209,604.32
  4. Step 4: Simplify right side
    359,349.12x = 112,987,426,684.49
  5. Step 5: Solve for x
    x = 112,987,426,684.49/359,349.12
  6. Step 6: Final answer
    x = 314,422.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.