Home / 210,815.95-290,932.95-115,320.46

Finding the Fourth Proportional to 210,815.95, 290,932.95 and 115,320.46

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Solution

The fourth proportional to 210,815.95, 290,932.95 and 115,320.46 is: 159,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,815.95 : 290,932.95 = 115,320.46 : x
  2. Step 2: Convert to fraction form
    210,815.95/290,932.95 = 115,320.46/x
  3. Step 3: Cross multiply
    210,815.95x = 290,932.95 × 115,320.46
  4. Step 4: Simplify right side
    210,815.95x = 33,550,521,623.16
  5. Step 5: Solve for x
    x = 33,550,521,623.16/210,815.95
  6. Step 6: Final answer
    x = 159,146.03

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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.