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Finding the Fourth Proportional to 359,053.96, 495,495.48 and 215,896

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Solution

The fourth proportional to 359,053.96, 495,495.48 and 215,896 is: 297,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,053.96 : 495,495.48 = 215,896 : x
  2. Step 2: Convert to fraction form
    359,053.96/495,495.48 = 215,896/x
  3. Step 3: Cross multiply
    359,053.96x = 495,495.48 × 215,896
  4. Step 4: Simplify right side
    359,053.96x = 106,975,492,150.08
  5. Step 5: Solve for x
    x = 106,975,492,150.08/359,053.96
  6. Step 6: Final answer
    x = 297,937.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.