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Finding the Fourth Proportional to 440,720.66, 608,194.77 and 239,516.66

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Solution

The fourth proportional to 440,720.66, 608,194.77 and 239,516.66 is: 330,533.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,720.66 : 608,194.77 = 239,516.66 : x
  2. Step 2: Convert to fraction form
    440,720.66/608,194.77 = 239,516.66/x
  3. Step 3: Cross multiply
    440,720.66x = 608,194.77 × 239,516.66
  4. Step 4: Simplify right side
    440,720.66x = 145,672,779,939.87
  5. Step 5: Solve for x
    x = 145,672,779,939.87/440,720.66
  6. Step 6: Final answer
    x = 330,533.13

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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.