Home / 208,341.91-287,365.08-127,808.47

Finding the Fourth Proportional to 208,341.91, 287,365.08 and 127,808.47

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Solution

The fourth proportional to 208,341.91, 287,365.08 and 127,808.47 is: 176,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,341.91 : 287,365.08 = 127,808.47 : x
  2. Step 2: Convert to fraction form
    208,341.91/287,365.08 = 127,808.47/x
  3. Step 3: Cross multiply
    208,341.91x = 287,365.08 × 127,808.47
  4. Step 4: Simplify right side
    208,341.91x = 36,727,691,206.23
  5. Step 5: Solve for x
    x = 36,727,691,206.23/208,341.91
  6. Step 6: Final answer
    x = 176,285.66

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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.