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Finding the Fourth Proportional to 340,487.68, 510,730.15 and 103,829.67

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Solution

The fourth proportional to 340,487.68, 510,730.15 and 103,829.67 is: 155,744.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,487.68 : 510,730.15 = 103,829.67 : x
  2. Step 2: Convert to fraction form
    340,487.68/510,730.15 = 103,829.67/x
  3. Step 3: Cross multiply
    340,487.68x = 510,730.15 × 103,829.67
  4. Step 4: Simplify right side
    340,487.68x = 53,028,944,159.08
  5. Step 5: Solve for x
    x = 53,028,944,159.08/340,487.68
  6. Step 6: Final answer
    x = 155,744.09

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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.