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Finding the Fourth Proportional to 344,269.60, 516,145.20 and 144,426.40

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Solution

The fourth proportional to 344,269.60, 516,145.20 and 144,426.40 is: 216,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,269.60 : 516,145.20 = 144,426.40 : x
  2. Step 2: Convert to fraction form
    344,269.60/516,145.20 = 144,426.40/x
  3. Step 3: Cross multiply
    344,269.60x = 516,145.20 × 144,426.40
  4. Step 4: Simplify right side
    344,269.60x = 74,544,993,113.28
  5. Step 5: Solve for x
    x = 74,544,993,113.28/344,269.60
  6. Step 6: Final answer
    x = 216,530.86

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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.