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Finding the Fourth Proportional to 360,521.10, 540,781.65 and 276,540.30

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Solution

The fourth proportional to 360,521.10, 540,781.65 and 276,540.30 is: 414,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,521.10 : 540,781.65 = 276,540.30 : x
  2. Step 2: Convert to fraction form
    360,521.10/540,781.65 = 276,540.30/x
  3. Step 3: Cross multiply
    360,521.10x = 540,781.65 × 276,540.30
  4. Step 4: Simplify right side
    360,521.10x = 149,547,919,725.50
  5. Step 5: Solve for x
    x = 149,547,919,725.50/360,521.10
  6. Step 6: Final answer
    x = 414,810.45

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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.