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Finding the Fourth Proportional to 320,443.96, 480,666.96 and 120,710.68

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Solution

The fourth proportional to 320,443.96, 480,666.96 and 120,710.68 is: 181,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,443.96 : 480,666.96 = 120,710.68 : x
  2. Step 2: Convert to fraction form
    320,443.96/480,666.96 = 120,710.68/x
  3. Step 3: Cross multiply
    320,443.96x = 480,666.96 × 120,710.68
  4. Step 4: Simplify right side
    320,443.96x = 58,021,635,595.13
  5. Step 5: Solve for x
    x = 58,021,635,595.13/320,443.96
  6. Step 6: Final answer
    x = 181,066.40

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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.