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Finding the Fourth Proportional to 356,477.82, 534,717.13 and 90,238.32

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Solution

The fourth proportional to 356,477.82, 534,717.13 and 90,238.32 is: 135,357.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,477.82 : 534,717.13 = 90,238.32 : x
  2. Step 2: Convert to fraction form
    356,477.82/534,717.13 = 90,238.32/x
  3. Step 3: Cross multiply
    356,477.82x = 534,717.13 × 90,238.32
  4. Step 4: Simplify right side
    356,477.82x = 48,251,975,486.42
  5. Step 5: Solve for x
    x = 48,251,975,486.42/356,477.82
  6. Step 6: Final answer
    x = 135,357.58

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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.