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Finding the Fourth Proportional to 303,995.10, 456,001.86 and 104,312.64

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Solution

The fourth proportional to 303,995.10, 456,001.86 and 104,312.64 is: 156,472.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,995.10 : 456,001.86 = 104,312.64 : x
  2. Step 2: Convert to fraction form
    303,995.10/456,001.86 = 104,312.64/x
  3. Step 3: Cross multiply
    303,995.10x = 456,001.86 × 104,312.64
  4. Step 4: Simplify right side
    303,995.10x = 47,566,757,861.51
  5. Step 5: Solve for x
    x = 47,566,757,861.51/303,995.10
  6. Step 6: Final answer
    x = 156,472.12

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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.