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Finding the Fourth Proportional to 229,330.32, 342,318.06 and 212,444.88

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Solution

The fourth proportional to 229,330.32, 342,318.06 and 212,444.88 is: 317,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,330.32 : 342,318.06 = 212,444.88 : x
  2. Step 2: Convert to fraction form
    229,330.32/342,318.06 = 212,444.88/x
  3. Step 3: Cross multiply
    229,330.32x = 342,318.06 × 212,444.88
  4. Step 4: Simplify right side
    229,330.32x = 72,723,719,178.53
  5. Step 5: Solve for x
    x = 72,723,719,178.53/229,330.32
  6. Step 6: Final answer
    x = 317,113.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.