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Finding the Fourth Proportional to 340,095.40, 510,123.42 and 129,754.60

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Solution

The fourth proportional to 340,095.40, 510,123.42 and 129,754.60 is: 194,624.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,095.40 : 510,123.42 = 129,754.60 : x
  2. Step 2: Convert to fraction form
    340,095.40/510,123.42 = 129,754.60/x
  3. Step 3: Cross multiply
    340,095.40x = 510,123.42 × 129,754.60
  4. Step 4: Simplify right side
    340,095.40x = 66,190,860,312.73
  5. Step 5: Solve for x
    x = 66,190,860,312.73/340,095.40
  6. Step 6: Final answer
    x = 194,624.39

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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.