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Finding the Fourth Proportional to 268,528.58, 402,792.90 and 127,860.74

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Solution

The fourth proportional to 268,528.58, 402,792.90 and 127,860.74 is: 191,791.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,528.58 : 402,792.90 = 127,860.74 : x
  2. Step 2: Convert to fraction form
    268,528.58/402,792.90 = 127,860.74/x
  3. Step 3: Cross multiply
    268,528.58x = 402,792.90 × 127,860.74
  4. Step 4: Simplify right side
    268,528.58x = 51,501,398,260.75
  5. Step 5: Solve for x
    x = 51,501,398,260.75/268,528.58
  6. Step 6: Final answer
    x = 191,791.12

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1.5x scale

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.