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Finding the Fourth Proportional to 359,129.58, 537,363.73 and 287,835.98

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Solution

The fourth proportional to 359,129.58, 537,363.73 and 287,835.98 is: 430,687.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,129.58 : 537,363.73 = 287,835.98 : x
  2. Step 2: Convert to fraction form
    359,129.58/537,363.73 = 287,835.98/x
  3. Step 3: Cross multiply
    359,129.58x = 537,363.73 × 287,835.98
  4. Step 4: Simplify right side
    359,129.58x = 154,672,615,841.01
  5. Step 5: Solve for x
    x = 154,672,615,841.01/359,129.58
  6. Step 6: Final answer
    x = 430,687.49

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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.