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Finding the Fourth Proportional to 478,992.98, 660,995.16 and 264,142.10

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Solution

The fourth proportional to 478,992.98, 660,995.16 and 264,142.10 is: 364,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,992.98 : 660,995.16 = 264,142.10 : x
  2. Step 2: Convert to fraction form
    478,992.98/660,995.16 = 264,142.10/x
  3. Step 3: Cross multiply
    478,992.98x = 660,995.16 × 264,142.10
  4. Step 4: Simplify right side
    478,992.98x = 174,596,649,652.24
  5. Step 5: Solve for x
    x = 174,596,649,652.24/478,992.98
  6. Step 6: Final answer
    x = 364,507.74

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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.