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Finding the Fourth Proportional to 284,415.32, 392,495.54 and 157,093.04

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Solution

The fourth proportional to 284,415.32, 392,495.54 and 157,093.04 is: 216,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,415.32 : 392,495.54 = 157,093.04 : x
  2. Step 2: Convert to fraction form
    284,415.32/392,495.54 = 157,093.04/x
  3. Step 3: Cross multiply
    284,415.32x = 392,495.54 × 157,093.04
  4. Step 4: Simplify right side
    284,415.32x = 61,658,314,817.10
  5. Step 5: Solve for x
    x = 61,658,314,817.10/284,415.32
  6. Step 6: Final answer
    x = 216,789.71

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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.