Home / 208,261.43-287,400.35-112,768.40

Finding the Fourth Proportional to 208,261.43, 287,400.35 and 112,768.40

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Solution

The fourth proportional to 208,261.43, 287,400.35 and 112,768.40 is: 155,620.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,261.43 : 287,400.35 = 112,768.40 : x
  2. Step 2: Convert to fraction form
    208,261.43/287,400.35 = 112,768.40/x
  3. Step 3: Cross multiply
    208,261.43x = 287,400.35 × 112,768.40
  4. Step 4: Simplify right side
    208,261.43x = 32,409,678,629.36
  5. Step 5: Solve for x
    x = 32,409,678,629.36/208,261.43
  6. Step 6: Final answer
    x = 155,620.17

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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.