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Finding the Fourth Proportional to 310,025.60, 427,926.22 and 202,612.32

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Solution

The fourth proportional to 310,025.60, 427,926.22 and 202,612.32 is: 279,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,025.60 : 427,926.22 = 202,612.32 : x
  2. Step 2: Convert to fraction form
    310,025.60/427,926.22 = 202,612.32/x
  3. Step 3: Cross multiply
    310,025.60x = 427,926.22 × 202,612.32
  4. Step 4: Simplify right side
    310,025.60x = 86,703,124,223.03
  5. Step 5: Solve for x
    x = 86,703,124,223.03/310,025.60
  6. Step 6: Final answer
    x = 279,664.40

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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.