Home / 311,931.48-430,581.87-242,884.26

Finding the Fourth Proportional to 311,931.48, 430,581.87 and 242,884.26

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Solution

The fourth proportional to 311,931.48, 430,581.87 and 242,884.26 is: 335,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,931.48 : 430,581.87 = 242,884.26 : x
  2. Step 2: Convert to fraction form
    311,931.48/430,581.87 = 242,884.26/x
  3. Step 3: Cross multiply
    311,931.48x = 430,581.87 × 242,884.26
  4. Step 4: Simplify right side
    311,931.48x = 104,581,558,864.37
  5. Step 5: Solve for x
    x = 104,581,558,864.37/311,931.48
  6. Step 6: Final answer
    x = 335,270.93

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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.