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Finding the Fourth Proportional to 545,146.08, 817,422.32 and 190,064.64

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Solution

The fourth proportional to 545,146.08, 817,422.32 and 190,064.64 is: 284,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,146.08 : 817,422.32 = 190,064.64 : x
  2. Step 2: Convert to fraction form
    545,146.08/817,422.32 = 190,064.64/x
  3. Step 3: Cross multiply
    545,146.08x = 817,422.32 × 190,064.64
  4. Step 4: Simplify right side
    545,146.08x = 155,363,078,978.77
  5. Step 5: Solve for x
    x = 155,363,078,978.77/545,146.08
  6. Step 6: Final answer
    x = 284,993.48

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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.