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Finding the Fourth Proportional to 340,109.40, 510,164.10 and 303,367.80

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Solution

The fourth proportional to 340,109.40, 510,164.10 and 303,367.80 is: 455,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,109.40 : 510,164.10 = 303,367.80 : x
  2. Step 2: Convert to fraction form
    340,109.40/510,164.10 = 303,367.80/x
  3. Step 3: Cross multiply
    340,109.40x = 510,164.10 × 303,367.80
  4. Step 4: Simplify right side
    340,109.40x = 154,767,360,655.98
  5. Step 5: Solve for x
    x = 154,767,360,655.98/340,109.40
  6. Step 6: Final answer
    x = 455,051.70

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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.