Home / 292,069.90-438,135.60-121,272.22

Finding the Fourth Proportional to 292,069.90, 438,135.60 and 121,272.22

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Solution

The fourth proportional to 292,069.90, 438,135.60 and 121,272.22 is: 181,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,069.90 : 438,135.60 = 121,272.22 : x
  2. Step 2: Convert to fraction form
    292,069.90/438,135.60 = 121,272.22/x
  3. Step 3: Cross multiply
    292,069.90x = 438,135.60 × 121,272.22
  4. Step 4: Simplify right side
    292,069.90x = 53,133,676,873.03
  5. Step 5: Solve for x
    x = 53,133,676,873.03/292,069.90
  6. Step 6: Final answer
    x = 181,921.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.