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Finding the Fourth Proportional to 346,815, 520,327.40 and 245,808.41

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Solution

The fourth proportional to 346,815, 520,327.40 and 245,808.41 is: 368,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,815 : 520,327.40 = 245,808.41 : x
  2. Step 2: Convert to fraction form
    346,815/520,327.40 = 245,808.41/x
  3. Step 3: Cross multiply
    346,815x = 520,327.40 × 245,808.41
  4. Step 4: Simplify right side
    346,815x = 127,900,847,042.76
  5. Step 5: Solve for x
    x = 127,900,847,042.76/346,815
  6. Step 6: Final answer
    x = 368,786.95

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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.