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Finding the Fourth Proportional to 340,281.60, 510,616.80 and 130,070.40

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Solution

The fourth proportional to 340,281.60, 510,616.80 and 130,070.40 is: 195,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,281.60 : 510,616.80 = 130,070.40 : x
  2. Step 2: Convert to fraction form
    340,281.60/510,616.80 = 130,070.40/x
  3. Step 3: Cross multiply
    340,281.60x = 510,616.80 × 130,070.40
  4. Step 4: Simplify right side
    340,281.60x = 66,416,131,422.72
  5. Step 5: Solve for x
    x = 66,416,131,422.72/340,281.60
  6. Step 6: Final answer
    x = 195,179.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.