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Finding the Fourth Proportional to 384,555.58, 530,683.58 and 212,473

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Solution

The fourth proportional to 384,555.58, 530,683.58 and 212,473 is: 293,211.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,555.58 : 530,683.58 = 212,473 : x
  2. Step 2: Convert to fraction form
    384,555.58/530,683.58 = 212,473/x
  3. Step 3: Cross multiply
    384,555.58x = 530,683.58 × 212,473
  4. Step 4: Simplify right side
    384,555.58x = 112,755,932,293.34
  5. Step 5: Solve for x
    x = 112,755,932,293.34/384,555.58
  6. Step 6: Final answer
    x = 293,211.02

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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.