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Finding the Fourth Proportional to 203,590.51, 280,955.25 and 112,946.49

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Solution

The fourth proportional to 203,590.51, 280,955.25 and 112,946.49 is: 155,866.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,590.51 : 280,955.25 = 112,946.49 : x
  2. Step 2: Convert to fraction form
    203,590.51/280,955.25 = 112,946.49/x
  3. Step 3: Cross multiply
    203,590.51x = 280,955.25 × 112,946.49
  4. Step 4: Simplify right side
    203,590.51x = 31,732,909,334.57
  5. Step 5: Solve for x
    x = 31,732,909,334.57/203,590.51
  6. Step 6: Final answer
    x = 155,866.35

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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.