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Finding the Fourth Proportional to 359,228.81, 495,550.25 and 223,211.09

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Solution

The fourth proportional to 359,228.81, 495,550.25 and 223,211.09 is: 307,916.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,228.81 : 495,550.25 = 223,211.09 : x
  2. Step 2: Convert to fraction form
    359,228.81/495,550.25 = 223,211.09/x
  3. Step 3: Cross multiply
    359,228.81x = 495,550.25 × 223,211.09
  4. Step 4: Simplify right side
    359,228.81x = 110,612,307,858.47
  5. Step 5: Solve for x
    x = 110,612,307,858.47/359,228.81
  6. Step 6: Final answer
    x = 307,916.02

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1.5x scale

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.