Home / 210,905.96-291,050.24-115,412.66

Finding the Fourth Proportional to 210,905.96, 291,050.24 and 115,412.66

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Solution

The fourth proportional to 210,905.96, 291,050.24 and 115,412.66 is: 159,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,905.96 : 291,050.24 = 115,412.66 : x
  2. Step 2: Convert to fraction form
    210,905.96/291,050.24 = 115,412.66/x
  3. Step 3: Cross multiply
    210,905.96x = 291,050.24 × 115,412.66
  4. Step 4: Simplify right side
    210,905.96x = 33,590,881,814.98
  5. Step 5: Solve for x
    x = 33,590,881,814.98/210,905.96
  6. Step 6: Final answer
    x = 159,269.48

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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.