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Finding the Fourth Proportional to 384,437.04, 530,520.98 and 212,366.84

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Solution

The fourth proportional to 384,437.04, 530,520.98 and 212,366.84 is: 293,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,437.04 : 530,520.98 = 212,366.84 : x
  2. Step 2: Convert to fraction form
    384,437.04/530,520.98 = 212,366.84/x
  3. Step 3: Cross multiply
    384,437.04x = 530,520.98 × 212,366.84
  4. Step 4: Simplify right side
    384,437.04x = 112,665,064,076.30
  5. Step 5: Solve for x
    x = 112,665,064,076.30/384,437.04
  6. Step 6: Final answer
    x = 293,065.06

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1.5x scale

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.