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Finding the Fourth Proportional to 465,157.60, 642,001.08 and 274,159.60

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Solution

The fourth proportional to 465,157.60, 642,001.08 and 274,159.60 is: 378,389.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,157.60 : 642,001.08 = 274,159.60 : x
  2. Step 2: Convert to fraction form
    465,157.60/642,001.08 = 274,159.60/x
  3. Step 3: Cross multiply
    465,157.60x = 642,001.08 × 274,159.60
  4. Step 4: Simplify right side
    465,157.60x = 176,010,759,292.37
  5. Step 5: Solve for x
    x = 176,010,759,292.37/465,157.60
  6. Step 6: Final answer
    x = 378,389.52

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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.