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Finding the Fourth Proportional to 340,492.80, 510,737.82 and 103,834.79

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Solution

The fourth proportional to 340,492.80, 510,737.82 and 103,834.79 is: 155,751.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,492.80 : 510,737.82 = 103,834.79 : x
  2. Step 2: Convert to fraction form
    340,492.80/510,737.82 = 103,834.79/x
  3. Step 3: Cross multiply
    340,492.80x = 510,737.82 × 103,834.79
  4. Step 4: Simplify right side
    340,492.80x = 53,032,354,284.76
  5. Step 5: Solve for x
    x = 53,032,354,284.76/340,492.80
  6. Step 6: Final answer
    x = 155,751.76

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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.