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Finding the Fourth Proportional to 545,368.64, 818,090.33 and 185,393.01

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Solution

The fourth proportional to 545,368.64, 818,090.33 and 185,393.01 is: 278,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,368.64 : 818,090.33 = 185,393.01 : x
  2. Step 2: Convert to fraction form
    545,368.64/818,090.33 = 185,393.01/x
  3. Step 3: Cross multiply
    545,368.64x = 818,090.33 × 185,393.01
  4. Step 4: Simplify right side
    545,368.64x = 151,668,228,730.59
  5. Step 5: Solve for x
    x = 151,668,228,730.59/545,368.64
  6. Step 6: Final answer
    x = 278,102.22

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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.