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Finding the Fourth Proportional to 243,304.32, 335,756.64 and 135,876.24

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Solution

The fourth proportional to 243,304.32, 335,756.64 and 135,876.24 is: 187,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,304.32 : 335,756.64 = 135,876.24 : x
  2. Step 2: Convert to fraction form
    243,304.32/335,756.64 = 135,876.24/x
  3. Step 3: Cross multiply
    243,304.32x = 335,756.64 × 135,876.24
  4. Step 4: Simplify right side
    243,304.32x = 45,621,349,798.23
  5. Step 5: Solve for x
    x = 45,621,349,798.23/243,304.32
  6. Step 6: Final answer
    x = 187,507.36

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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.