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Finding the Fourth Proportional to 359,131.18, 538,855.44 and 188,312.10

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Solution

The fourth proportional to 359,131.18, 538,855.44 and 188,312.10 is: 282,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,131.18 : 538,855.44 = 188,312.10 : x
  2. Step 2: Convert to fraction form
    359,131.18/538,855.44 = 188,312.10/x
  3. Step 3: Cross multiply
    359,131.18x = 538,855.44 × 188,312.10
  4. Step 4: Simplify right side
    359,131.18x = 101,472,999,502.82
  5. Step 5: Solve for x
    x = 101,472,999,502.82/359,131.18
  6. Step 6: Final answer
    x = 282,551.35

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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.