Home / 330,486.90-456,072.38-187,256.62

Finding the Fourth Proportional to 330,486.90, 456,072.38 and 187,256.62

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Solution

The fourth proportional to 330,486.90, 456,072.38 and 187,256.62 is: 258,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,486.90 : 456,072.38 = 187,256.62 : x
  2. Step 2: Convert to fraction form
    330,486.90/456,072.38 = 187,256.62/x
  3. Step 3: Cross multiply
    330,486.90x = 456,072.38 × 187,256.62
  4. Step 4: Simplify right side
    330,486.90x = 85,402,572,354.16
  5. Step 5: Solve for x
    x = 85,402,572,354.16/330,486.90
  6. Step 6: Final answer
    x = 258,414.40

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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.