Home / 210,549.30-290,557.44-115,056.60

Finding the Fourth Proportional to 210,549.30, 290,557.44 and 115,056.60

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Solution

The fourth proportional to 210,549.30, 290,557.44 and 115,056.60 is: 158,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,549.30 : 290,557.44 = 115,056.60 : x
  2. Step 2: Convert to fraction form
    210,549.30/290,557.44 = 115,056.60/x
  3. Step 3: Cross multiply
    210,549.30x = 290,557.44 × 115,056.60
  4. Step 4: Simplify right side
    210,549.30x = 33,430,551,151.10
  5. Step 5: Solve for x
    x = 33,430,551,151.10/210,549.30
  6. Step 6: Final answer
    x = 158,777.78

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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.