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Finding the Fourth Proportional to 360,686.70, 497,704.35 and 207,774.90

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Solution

The fourth proportional to 360,686.70, 497,704.35 and 207,774.90 is: 286,704.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,686.70 : 497,704.35 = 207,774.90 : x
  2. Step 2: Convert to fraction form
    360,686.70/497,704.35 = 207,774.90/x
  3. Step 3: Cross multiply
    360,686.70x = 497,704.35 × 207,774.90
  4. Step 4: Simplify right side
    360,686.70x = 103,410,471,550.82
  5. Step 5: Solve for x
    x = 103,410,471,550.82/360,686.70
  6. Step 6: Final answer
    x = 286,704.42

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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.