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Finding the Fourth Proportional to 340,266.96, 510,400.45 and 127,051.50

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Solution

The fourth proportional to 340,266.96, 510,400.45 and 127,051.50 is: 190,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,266.96 : 510,400.45 = 127,051.50 : x
  2. Step 2: Convert to fraction form
    340,266.96/510,400.45 = 127,051.50/x
  3. Step 3: Cross multiply
    340,266.96x = 510,400.45 × 127,051.50
  4. Step 4: Simplify right side
    340,266.96x = 64,847,142,773.18
  5. Step 5: Solve for x
    x = 64,847,142,773.18/340,266.96
  6. Step 6: Final answer
    x = 190,577.25

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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.