Home / 210,339.18-290,265.93-129,734.46

Finding the Fourth Proportional to 210,339.18, 290,265.93 and 129,734.46

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Solution

The fourth proportional to 210,339.18, 290,265.93 and 129,734.46 is: 179,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,339.18 : 290,265.93 = 129,734.46 : x
  2. Step 2: Convert to fraction form
    210,339.18/290,265.93 = 129,734.46/x
  3. Step 3: Cross multiply
    210,339.18x = 290,265.93 × 129,734.46
  4. Step 4: Simplify right side
    210,339.18x = 37,657,493,684.95
  5. Step 5: Solve for x
    x = 37,657,493,684.95/210,339.18
  6. Step 6: Final answer
    x = 179,032.24

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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.