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Finding the Fourth Proportional to 210,903.48, 291,034.62 and 115,412.04

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Solution

The fourth proportional to 210,903.48, 291,034.62 and 115,412.04 is: 159,261.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,903.48 : 291,034.62 = 115,412.04 : x
  2. Step 2: Convert to fraction form
    210,903.48/291,034.62 = 115,412.04/x
  3. Step 3: Cross multiply
    210,903.48x = 291,034.62 × 115,412.04
  4. Step 4: Simplify right side
    210,903.48x = 33,588,899,204.82
  5. Step 5: Solve for x
    x = 33,588,899,204.82/210,903.48
  6. Step 6: Final answer
    x = 159,261.95

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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.