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Finding the Fourth Proportional to 354,256.02, 488,883.24 and 216,457.38

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Solution

The fourth proportional to 354,256.02, 488,883.24 and 216,457.38 is: 298,717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,256.02 : 488,883.24 = 216,457.38 : x
  2. Step 2: Convert to fraction form
    354,256.02/488,883.24 = 216,457.38/x
  3. Step 3: Cross multiply
    354,256.02x = 488,883.24 × 216,457.38
  4. Step 4: Simplify right side
    354,256.02x = 105,822,385,256.31
  5. Step 5: Solve for x
    x = 105,822,385,256.31/354,256.02
  6. Step 6: Final answer
    x = 298,717.25

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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.