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Finding the Fourth Proportional to 345,298.68, 517,991.76 and 95,980.68

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Solution

The fourth proportional to 345,298.68, 517,991.76 and 95,980.68 is: 143,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,298.68 : 517,991.76 = 95,980.68 : x
  2. Step 2: Convert to fraction form
    345,298.68/517,991.76 = 95,980.68/x
  3. Step 3: Cross multiply
    345,298.68x = 517,991.76 × 95,980.68
  4. Step 4: Simplify right side
    345,298.68x = 49,717,201,359.20
  5. Step 5: Solve for x
    x = 49,717,201,359.20/345,298.68
  6. Step 6: Final answer
    x = 143,983.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.