Home / 347,153.10-478,861.77-229,280.76

Finding the Fourth Proportional to 347,153.10, 478,861.77 and 229,280.76

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Solution

The fourth proportional to 347,153.10, 478,861.77 and 229,280.76 is: 316,269.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,153.10 : 478,861.77 = 229,280.76 : x
  2. Step 2: Convert to fraction form
    347,153.10/478,861.77 = 229,280.76/x
  3. Step 3: Cross multiply
    347,153.10x = 478,861.77 × 229,280.76
  4. Step 4: Simplify right side
    347,153.10x = 109,793,790,560.55
  5. Step 5: Solve for x
    x = 109,793,790,560.55/347,153.10
  6. Step 6: Final answer
    x = 316,269.08

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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.