Home / 203,281.45-280,528.13-112,643.29

Finding the Fourth Proportional to 203,281.45, 280,528.13 and 112,643.29

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Solution

The fourth proportional to 203,281.45, 280,528.13 and 112,643.29 is: 155,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,281.45 : 280,528.13 = 112,643.29 : x
  2. Step 2: Convert to fraction form
    203,281.45/280,528.13 = 112,643.29/x
  3. Step 3: Cross multiply
    203,281.45x = 280,528.13 × 112,643.29
  4. Step 4: Simplify right side
    203,281.45x = 31,599,609,534.89
  5. Step 5: Solve for x
    x = 31,599,609,534.89/203,281.45
  6. Step 6: Final answer
    x = 155,447.58

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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.