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Finding the Fourth Proportional to 630,961.13, 946,443.71 and 157,646.54

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Solution

The fourth proportional to 630,961.13, 946,443.71 and 157,646.54 is: 236,470.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,961.13 : 946,443.71 = 157,646.54 : x
  2. Step 2: Convert to fraction form
    630,961.13/946,443.71 = 157,646.54/x
  3. Step 3: Cross multiply
    630,961.13x = 946,443.71 × 157,646.54
  4. Step 4: Simplify right side
    630,961.13x = 149,203,571,848.16
  5. Step 5: Solve for x
    x = 149,203,571,848.16/630,961.13
  6. Step 6: Final answer
    x = 236,470.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.