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Finding the Fourth Proportional to 243,846.64, 336,492.66 and 136,398.16

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Solution

The fourth proportional to 243,846.64, 336,492.66 and 136,398.16 is: 188,220.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,846.64 : 336,492.66 = 136,398.16 : x
  2. Step 2: Convert to fraction form
    243,846.64/336,492.66 = 136,398.16/x
  3. Step 3: Cross multiply
    243,846.64x = 336,492.66 × 136,398.16
  4. Step 4: Simplify right side
    243,846.64x = 45,896,979,677.51
  5. Step 5: Solve for x
    x = 45,896,979,677.51/243,846.64
  6. Step 6: Final answer
    x = 188,220.68

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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.