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Finding the Fourth Proportional to 243,967.12, 336,676.32 and 136,547.08

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Solution

The fourth proportional to 243,967.12, 336,676.32 and 136,547.08 is: 188,435.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,967.12 : 336,676.32 = 136,547.08 : x
  2. Step 2: Convert to fraction form
    243,967.12/336,676.32 = 136,547.08/x
  3. Step 3: Cross multiply
    243,967.12x = 336,676.32 × 136,547.08
  4. Step 4: Simplify right side
    243,967.12x = 45,972,168,401.15
  5. Step 5: Solve for x
    x = 45,972,168,401.15/243,967.12
  6. Step 6: Final answer
    x = 188,435.92

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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.