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Finding the Fourth Proportional to 341,911.30, 512,866.95 and 155,287.30

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Solution

The fourth proportional to 341,911.30, 512,866.95 and 155,287.30 is: 232,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,911.30 : 512,866.95 = 155,287.30 : x
  2. Step 2: Convert to fraction form
    341,911.30/512,866.95 = 155,287.30/x
  3. Step 3: Cross multiply
    341,911.30x = 512,866.95 × 155,287.30
  4. Step 4: Simplify right side
    341,911.30x = 79,641,723,924.74
  5. Step 5: Solve for x
    x = 79,641,723,924.74/341,911.30
  6. Step 6: Final answer
    x = 232,930.95

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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.