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Finding the Fourth Proportional to 280,492.52, 387,079.34 and 165,812.49

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Solution

The fourth proportional to 280,492.52, 387,079.34 and 165,812.49 is: 228,821.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,492.52 : 387,079.34 = 165,812.49 : x
  2. Step 2: Convert to fraction form
    280,492.52/387,079.34 = 165,812.49/x
  3. Step 3: Cross multiply
    280,492.52x = 387,079.34 × 165,812.49
  4. Step 4: Simplify right side
    280,492.52x = 64,182,588,363.89
  5. Step 5: Solve for x
    x = 64,182,588,363.89/280,492.52
  6. Step 6: Final answer
    x = 228,821.04

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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.