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Finding the Fourth Proportional to 314,703.20, 434,454.91 and 245,644.58

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Solution

The fourth proportional to 314,703.20, 434,454.91 and 245,644.58 is: 339,117.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,703.20 : 434,454.91 = 245,644.58 : x
  2. Step 2: Convert to fraction form
    314,703.20/434,454.91 = 245,644.58/x
  3. Step 3: Cross multiply
    314,703.20x = 434,454.91 × 245,644.58
  4. Step 4: Simplify right side
    314,703.20x = 106,721,494,367.91
  5. Step 5: Solve for x
    x = 106,721,494,367.91/314,703.20
  6. Step 6: Final answer
    x = 339,117.92

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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.