Home / 208,212.30-287,332.65-112,718.97

Finding the Fourth Proportional to 208,212.30, 287,332.65 and 112,718.97

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Solution

The fourth proportional to 208,212.30, 287,332.65 and 112,718.97 is: 155,552.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,212.30 : 287,332.65 = 112,718.97 : x
  2. Step 2: Convert to fraction form
    208,212.30/287,332.65 = 112,718.97/x
  3. Step 3: Cross multiply
    208,212.30x = 287,332.65 × 112,718.97
  4. Step 4: Simplify right side
    208,212.30x = 32,387,840,355.37
  5. Step 5: Solve for x
    x = 32,387,840,355.37/208,212.30
  6. Step 6: Final answer
    x = 155,552.00

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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.