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Finding the Fourth Proportional to 378,068.48, 567,102.72 and 111,808.26

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Solution

The fourth proportional to 378,068.48, 567,102.72 and 111,808.26 is: 167,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,068.48 : 567,102.72 = 111,808.26 : x
  2. Step 2: Convert to fraction form
    378,068.48/567,102.72 = 111,808.26/x
  3. Step 3: Cross multiply
    378,068.48x = 567,102.72 × 111,808.26
  4. Step 4: Simplify right side
    378,068.48x = 63,406,768,364.47
  5. Step 5: Solve for x
    x = 63,406,768,364.47/378,068.48
  6. Step 6: Final answer
    x = 167,712.39

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1.5x scale

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.