Home / 209,447.32-289,056.56-118,832.80

Finding the Fourth Proportional to 209,447.32, 289,056.56 and 118,832.80

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Solution

The fourth proportional to 209,447.32, 289,056.56 and 118,832.80 is: 164,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,447.32 : 289,056.56 = 118,832.80 : x
  2. Step 2: Convert to fraction form
    209,447.32/289,056.56 = 118,832.80/x
  3. Step 3: Cross multiply
    209,447.32x = 289,056.56 × 118,832.80
  4. Step 4: Simplify right side
    209,447.32x = 34,349,400,383.17
  5. Step 5: Solve for x
    x = 34,349,400,383.17/209,447.32
  6. Step 6: Final answer
    x = 164,000.19

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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.