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Finding the Fourth Proportional to 356,398.59, 534,597.66 and 143,166.45

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Solution

The fourth proportional to 356,398.59, 534,597.66 and 143,166.45 is: 214,749.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,398.59 : 534,597.66 = 143,166.45 : x
  2. Step 2: Convert to fraction form
    356,398.59/534,597.66 = 143,166.45/x
  3. Step 3: Cross multiply
    356,398.59x = 534,597.66 × 143,166.45
  4. Step 4: Simplify right side
    356,398.59x = 76,536,449,160.51
  5. Step 5: Solve for x
    x = 76,536,449,160.51/356,398.59
  6. Step 6: Final answer
    x = 214,749.58

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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.