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Finding the Fourth Proportional to 363,703.69, 501,911.24 and 210,830.55

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Solution

The fourth proportional to 363,703.69, 501,911.24 and 210,830.55 is: 290,946.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,703.69 : 501,911.24 = 210,830.55 : x
  2. Step 2: Convert to fraction form
    363,703.69/501,911.24 = 210,830.55/x
  3. Step 3: Cross multiply
    363,703.69x = 501,911.24 × 210,830.55
  4. Step 4: Simplify right side
    363,703.69x = 105,818,223,934.85
  5. Step 5: Solve for x
    x = 105,818,223,934.85/363,703.69
  6. Step 6: Final answer
    x = 290,946.25

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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.