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Finding the Fourth Proportional to 379,802.96, 523,919.76 and 243,684.92

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Solution

The fourth proportional to 379,802.96, 523,919.76 and 243,684.92 is: 336,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,802.96 : 523,919.76 = 243,684.92 : x
  2. Step 2: Convert to fraction form
    379,802.96/523,919.76 = 243,684.92/x
  3. Step 3: Cross multiply
    379,802.96x = 523,919.76 × 243,684.92
  4. Step 4: Simplify right side
    379,802.96x = 127,671,344,802.02
  5. Step 5: Solve for x
    x = 127,671,344,802.02/379,802.96
  6. Step 6: Final answer
    x = 336,151.53

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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.