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Finding the Fourth Proportional to 208,264.93, 312,332.72 and 75,127.86

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Solution

The fourth proportional to 208,264.93, 312,332.72 and 75,127.86 is: 112,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,264.93 : 312,332.72 = 75,127.86 : x
  2. Step 2: Convert to fraction form
    208,264.93/312,332.72 = 75,127.86/x
  3. Step 3: Cross multiply
    208,264.93x = 312,332.72 × 75,127.86
  4. Step 4: Simplify right side
    208,264.93x = 23,464,888,485.94
  5. Step 5: Solve for x
    x = 23,464,888,485.94/208,264.93
  6. Step 6: Final answer
    x = 112,668.46

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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.