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Finding the Fourth Proportional to 283,195.56, 390,810.96 and 155,875.68

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Solution

The fourth proportional to 283,195.56, 390,810.96 and 155,875.68 is: 215,109.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,195.56 : 390,810.96 = 155,875.68 : x
  2. Step 2: Convert to fraction form
    283,195.56/390,810.96 = 155,875.68/x
  3. Step 3: Cross multiply
    283,195.56x = 390,810.96 × 155,875.68
  4. Step 4: Simplify right side
    283,195.56x = 60,917,924,141.45
  5. Step 5: Solve for x
    x = 60,917,924,141.45/283,195.56
  6. Step 6: Final answer
    x = 215,109.04

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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.