Home / 203,108.31-280,323.59-118,275.39

Finding the Fourth Proportional to 203,108.31, 280,323.59 and 118,275.39

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Solution

The fourth proportional to 203,108.31, 280,323.59 and 118,275.39 is: 163,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,108.31 : 280,323.59 = 118,275.39 : x
  2. Step 2: Convert to fraction form
    203,108.31/280,323.59 = 118,275.39/x
  3. Step 3: Cross multiply
    203,108.31x = 280,323.59 × 118,275.39
  4. Step 4: Simplify right side
    203,108.31x = 33,155,381,342.07
  5. Step 5: Solve for x
    x = 33,155,381,342.07/203,108.31
  6. Step 6: Final answer
    x = 163,239.91

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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.