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Finding the Fourth Proportional to 340,049.79, 510,041.88 and 103,394.52

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Solution

The fourth proportional to 340,049.79, 510,041.88 and 103,394.52 is: 155,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,049.79 : 510,041.88 = 103,394.52 : x
  2. Step 2: Convert to fraction form
    340,049.79/510,041.88 = 103,394.52/x
  3. Step 3: Cross multiply
    340,049.79x = 510,041.88 × 103,394.52
  4. Step 4: Simplify right side
    340,049.79x = 52,735,535,362.50
  5. Step 5: Solve for x
    x = 52,735,535,362.50/340,049.79
  6. Step 6: Final answer
    x = 155,081.81

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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.