Home / 210,856.10-290,985.62-115,364.84

Finding the Fourth Proportional to 210,856.10, 290,985.62 and 115,364.84

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Solution

The fourth proportional to 210,856.10, 290,985.62 and 115,364.84 is: 159,205.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,856.10 : 290,985.62 = 115,364.84 : x
  2. Step 2: Convert to fraction form
    210,856.10/290,985.62 = 115,364.84/x
  3. Step 3: Cross multiply
    210,856.10x = 290,985.62 × 115,364.84
  4. Step 4: Simplify right side
    210,856.10x = 33,569,507,461.85
  5. Step 5: Solve for x
    x = 33,569,507,461.85/210,856.10
  6. Step 6: Final answer
    x = 159,205.77

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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.