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Finding the Fourth Proportional to 359,080.92, 536,424.12 and 258,381.72

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Solution

The fourth proportional to 359,080.92, 536,424.12 and 258,381.72 is: 385,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,080.92 : 536,424.12 = 258,381.72 : x
  2. Step 2: Convert to fraction form
    359,080.92/536,424.12 = 258,381.72/x
  3. Step 3: Cross multiply
    359,080.92x = 536,424.12 × 258,381.72
  4. Step 4: Simplify right side
    359,080.92x = 138,602,186,775.09
  5. Step 5: Solve for x
    x = 138,602,186,775.09/359,080.92
  6. Step 6: Final answer
    x = 385,991.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.