Home / 384,724.13-530,902.79-212,633.20

Finding the Fourth Proportional to 384,724.13, 530,902.79 and 212,633.20

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Solution

The fourth proportional to 384,724.13, 530,902.79 and 212,633.20 is: 293,424.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,724.13 : 530,902.79 = 212,633.20 : x
  2. Step 2: Convert to fraction form
    384,724.13/530,902.79 = 212,633.20/x
  3. Step 3: Cross multiply
    384,724.13x = 530,902.79 × 212,633.20
  4. Step 4: Simplify right side
    384,724.13x = 112,887,559,126.63
  5. Step 5: Solve for x
    x = 112,887,559,126.63/384,724.13
  6. Step 6: Final answer
    x = 293,424.69

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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.