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Finding the Fourth Proportional to 371,777.94, 513,044.55 and 208,423.62

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Solution

The fourth proportional to 371,777.94, 513,044.55 and 208,423.62 is: 287,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,777.94 : 513,044.55 = 208,423.62 : x
  2. Step 2: Convert to fraction form
    371,777.94/513,044.55 = 208,423.62/x
  3. Step 3: Cross multiply
    371,777.94x = 513,044.55 × 208,423.62
  4. Step 4: Simplify right side
    371,777.94x = 106,930,602,332.27
  5. Step 5: Solve for x
    x = 106,930,602,332.27/371,777.94
  6. Step 6: Final answer
    x = 287,619.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.