Home / 210,529.60-290,498.64-119,889.28

Finding the Fourth Proportional to 210,529.60, 290,498.64 and 119,889.28

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Solution

The fourth proportional to 210,529.60, 290,498.64 and 119,889.28 is: 165,428.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,529.60 : 290,498.64 = 119,889.28 : x
  2. Step 2: Convert to fraction form
    210,529.60/290,498.64 = 119,889.28/x
  3. Step 3: Cross multiply
    210,529.60x = 290,498.64 × 119,889.28
  4. Step 4: Simplify right side
    210,529.60x = 34,827,672,790.58
  5. Step 5: Solve for x
    x = 34,827,672,790.58/210,529.60
  6. Step 6: Final answer
    x = 165,428.87

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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.