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Finding the Fourth Proportional to 243,507.01, 336,038.70 and 136,077.01

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Solution

The fourth proportional to 243,507.01, 336,038.70 and 136,077.01 is: 187,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,507.01 : 336,038.70 = 136,077.01 : x
  2. Step 2: Convert to fraction form
    243,507.01/336,038.70 = 136,077.01/x
  3. Step 3: Cross multiply
    243,507.01x = 336,038.70 × 136,077.01
  4. Step 4: Simplify right side
    243,507.01x = 45,727,142,717.98
  5. Step 5: Solve for x
    x = 45,727,142,717.98/243,507.01
  6. Step 6: Final answer
    x = 187,785.73

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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.