Home / 208,975.75-288,316.08-127,332.30

Finding the Fourth Proportional to 208,975.75, 288,316.08 and 127,332.30

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Solution

The fourth proportional to 208,975.75, 288,316.08 and 127,332.30 is: 175,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,975.75 : 288,316.08 = 127,332.30 : x
  2. Step 2: Convert to fraction form
    208,975.75/288,316.08 = 127,332.30/x
  3. Step 3: Cross multiply
    208,975.75x = 288,316.08 × 127,332.30
  4. Step 4: Simplify right side
    208,975.75x = 36,711,951,032.69
  5. Step 5: Solve for x
    x = 36,711,951,032.69/208,975.75
  6. Step 6: Final answer
    x = 175,675.65

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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.