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Finding the Fourth Proportional to 340,303.82, 510,529.62 and 103,640.27

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Solution

The fourth proportional to 340,303.82, 510,529.62 and 103,640.27 is: 155,482.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,303.82 : 510,529.62 = 103,640.27 : x
  2. Step 2: Convert to fraction form
    340,303.82/510,529.62 = 103,640.27/x
  3. Step 3: Cross multiply
    340,303.82x = 510,529.62 × 103,640.27
  4. Step 4: Simplify right side
    340,303.82x = 52,911,427,659.80
  5. Step 5: Solve for x
    x = 52,911,427,659.80/340,303.82
  6. Step 6: Final answer
    x = 155,482.91

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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.