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Finding the Fourth Proportional to 455,031.60, 628,068.51 and 264,106.50

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Solution

The fourth proportional to 455,031.60, 628,068.51 and 264,106.50 is: 364,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,031.60 : 628,068.51 = 264,106.50 : x
  2. Step 2: Convert to fraction form
    455,031.60/628,068.51 = 264,106.50/x
  3. Step 3: Cross multiply
    455,031.60x = 628,068.51 × 264,106.50
  4. Step 4: Simplify right side
    455,031.60x = 165,876,975,936.32
  5. Step 5: Solve for x
    x = 165,876,975,936.32/455,031.60
  6. Step 6: Final answer
    x = 364,539.46

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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.