Home / 348,531.30-521,630.55-243,555.30

Finding the Fourth Proportional to 348,531.30, 521,630.55 and 243,555.30

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Solution

The fourth proportional to 348,531.30, 521,630.55 and 243,555.30 is: 364,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,531.30 : 521,630.55 = 243,555.30 : x
  2. Step 2: Convert to fraction form
    348,531.30/521,630.55 = 243,555.30/x
  3. Step 3: Cross multiply
    348,531.30x = 521,630.55 × 243,555.30
  4. Step 4: Simplify right side
    348,531.30x = 127,045,885,094.42
  5. Step 5: Solve for x
    x = 127,045,885,094.42/348,531.30
  6. Step 6: Final answer
    x = 364,517.86

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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.