Home / 311,928.04-429,955.14-243,824.68

Finding the Fourth Proportional to 311,928.04, 429,955.14 and 243,824.68

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Solution

The fourth proportional to 311,928.04, 429,955.14 and 243,824.68 is: 336,082.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,928.04 : 429,955.14 = 243,824.68 : x
  2. Step 2: Convert to fraction form
    311,928.04/429,955.14 = 243,824.68/x
  3. Step 3: Cross multiply
    311,928.04x = 429,955.14 × 243,824.68
  4. Step 4: Simplify right side
    311,928.04x = 104,833,674,424.86
  5. Step 5: Solve for x
    x = 104,833,674,424.86/311,928.04
  6. Step 6: Final answer
    x = 336,082.88

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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.