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Finding the Fourth Proportional to 359,381.48, 538,653.05 and 270,348.71

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Solution

The fourth proportional to 359,381.48, 538,653.05 and 270,348.71 is: 405,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,381.48 : 538,653.05 = 270,348.71 : x
  2. Step 2: Convert to fraction form
    359,381.48/538,653.05 = 270,348.71/x
  3. Step 3: Cross multiply
    359,381.48x = 538,653.05 × 270,348.71
  4. Step 4: Simplify right side
    359,381.48x = 145,624,157,199.96
  5. Step 5: Solve for x
    x = 145,624,157,199.96/359,381.48
  6. Step 6: Final answer
    x = 405,207.74

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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.