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Finding the Fourth Proportional to 368,630.73, 508,709.16 and 207,485.69

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Solution

The fourth proportional to 368,630.73, 508,709.16 and 207,485.69 is: 286,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,630.73 : 508,709.16 = 207,485.69 : x
  2. Step 2: Convert to fraction form
    368,630.73/508,709.16 = 207,485.69/x
  3. Step 3: Cross multiply
    368,630.73x = 508,709.16 × 207,485.69
  4. Step 4: Simplify right side
    368,630.73x = 105,549,868,528.38
  5. Step 5: Solve for x
    x = 105,549,868,528.38/368,630.73
  6. Step 6: Final answer
    x = 286,329.54

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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.