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Finding the Fourth Proportional to 340,904.70, 511,357.05 and 246,426.30

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Solution

The fourth proportional to 340,904.70, 511,357.05 and 246,426.30 is: 369,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,904.70 : 511,357.05 = 246,426.30 : x
  2. Step 2: Convert to fraction form
    340,904.70/511,357.05 = 246,426.30/x
  3. Step 3: Cross multiply
    340,904.70x = 511,357.05 × 246,426.30
  4. Step 4: Simplify right side
    340,904.70x = 126,011,825,810.42
  5. Step 5: Solve for x
    x = 126,011,825,810.42/340,904.70
  6. Step 6: Final answer
    x = 369,639.45

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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.