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Finding the Fourth Proportional to 376,709.74, 519,995.94 and 249,426.34

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Solution

The fourth proportional to 376,709.74, 519,995.94 and 249,426.34 is: 344,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,709.74 : 519,995.94 = 249,426.34 : x
  2. Step 2: Convert to fraction form
    376,709.74/519,995.94 = 249,426.34/x
  3. Step 3: Cross multiply
    376,709.74x = 519,995.94 × 249,426.34
  4. Step 4: Simplify right side
    376,709.74x = 129,700,684,129.06
  5. Step 5: Solve for x
    x = 129,700,684,129.06/376,709.74
  6. Step 6: Final answer
    x = 344,298.73

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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.