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Finding the Fourth Proportional to 311,616.36, 430,060.86 and 184,332.96

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Solution

The fourth proportional to 311,616.36, 430,060.86 and 184,332.96 is: 254,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,616.36 : 430,060.86 = 184,332.96 : x
  2. Step 2: Convert to fraction form
    311,616.36/430,060.86 = 184,332.96/x
  3. Step 3: Cross multiply
    311,616.36x = 430,060.86 × 184,332.96
  4. Step 4: Simplify right side
    311,616.36x = 79,274,391,303.95
  5. Step 5: Solve for x
    x = 79,274,391,303.95/311,616.36
  6. Step 6: Final answer
    x = 254,397.40

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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.