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Finding the Fourth Proportional to 359,131.33, 537,366.34 and 287,837.74

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Solution

The fourth proportional to 359,131.33, 537,366.34 and 287,837.74 is: 430,690.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,131.33 : 537,366.34 = 287,837.74 : x
  2. Step 2: Convert to fraction form
    359,131.33/537,366.34 = 287,837.74/x
  3. Step 3: Cross multiply
    359,131.33x = 537,366.34 × 287,837.74
  4. Step 4: Simplify right side
    359,131.33x = 154,674,312,857.67
  5. Step 5: Solve for x
    x = 154,674,312,857.67/359,131.33
  6. Step 6: Final answer
    x = 430,690.11

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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.