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Finding the Fourth Proportional to 320,866.34, 442,800.76 and 175,669.68

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Solution

The fourth proportional to 320,866.34, 442,800.76 and 175,669.68 is: 242,427.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,866.34 : 442,800.76 = 175,669.68 : x
  2. Step 2: Convert to fraction form
    320,866.34/442,800.76 = 175,669.68/x
  3. Step 3: Cross multiply
    320,866.34x = 442,800.76 × 175,669.68
  4. Step 4: Simplify right side
    320,866.34x = 77,786,667,812.96
  5. Step 5: Solve for x
    x = 77,786,667,812.96/320,866.34
  6. Step 6: Final answer
    x = 242,427.01

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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.