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Finding the Fourth Proportional to 340,529.45, 469,986.70 and 259,804.45

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Solution

The fourth proportional to 340,529.45, 469,986.70 and 259,804.45 is: 358,572.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,529.45 : 469,986.70 = 259,804.45 : x
  2. Step 2: Convert to fraction form
    340,529.45/469,986.70 = 259,804.45/x
  3. Step 3: Cross multiply
    340,529.45x = 469,986.70 × 259,804.45
  4. Step 4: Simplify right side
    340,529.45x = 122,104,634,276.34
  5. Step 5: Solve for x
    x = 122,104,634,276.34/340,529.45
  6. Step 6: Final answer
    x = 358,572.90

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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.