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Finding the Fourth Proportional to 263,434.30, 395,151.45 and 210,946.30

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Solution

The fourth proportional to 263,434.30, 395,151.45 and 210,946.30 is: 316,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,434.30 : 395,151.45 = 210,946.30 : x
  2. Step 2: Convert to fraction form
    263,434.30/395,151.45 = 210,946.30/x
  3. Step 3: Cross multiply
    263,434.30x = 395,151.45 × 210,946.30
  4. Step 4: Simplify right side
    263,434.30x = 83,355,736,317.14
  5. Step 5: Solve for x
    x = 83,355,736,317.14/263,434.30
  6. Step 6: Final answer
    x = 316,419.45

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1.5x scale

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.