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Finding the Fourth Proportional to 242,783.13, 335,036.86 and 135,359.71

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Solution

The fourth proportional to 242,783.13, 335,036.86 and 135,359.71 is: 186,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,783.13 : 335,036.86 = 135,359.71 : x
  2. Step 2: Convert to fraction form
    242,783.13/335,036.86 = 135,359.71/x
  3. Step 3: Cross multiply
    242,783.13x = 335,036.86 × 135,359.71
  4. Step 4: Simplify right side
    242,783.13x = 45,350,492,208.91
  5. Step 5: Solve for x
    x = 45,350,492,208.91/242,783.13
  6. Step 6: Final answer
    x = 186,794.25

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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.