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Finding the Fourth Proportional to 430,870.40, 646,305.60 and 244,246.40

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Solution

The fourth proportional to 430,870.40, 646,305.60 and 244,246.40 is: 366,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,870.40 : 646,305.60 = 244,246.40 : x
  2. Step 2: Convert to fraction form
    430,870.40/646,305.60 = 244,246.40/x
  3. Step 3: Cross multiply
    430,870.40x = 646,305.60 × 244,246.40
  4. Step 4: Simplify right side
    430,870.40x = 157,857,816,099.84
  5. Step 5: Solve for x
    x = 157,857,816,099.84/430,870.40
  6. Step 6: Final answer
    x = 366,369.60

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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.