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Finding the Fourth Proportional to 185,363.90, 278,045.85 and 165,680.90

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Solution

The fourth proportional to 185,363.90, 278,045.85 and 165,680.90 is: 248,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,363.90 : 278,045.85 = 165,680.90 : x
  2. Step 2: Convert to fraction form
    185,363.90/278,045.85 = 165,680.90/x
  3. Step 3: Cross multiply
    185,363.90x = 278,045.85 × 165,680.90
  4. Step 4: Simplify right side
    185,363.90x = 46,066,886,669.27
  5. Step 5: Solve for x
    x = 46,066,886,669.27/185,363.90
  6. Step 6: Final answer
    x = 248,521.35

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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.