Home / 311,920.57-430,567.02-242,873.53

Finding the Fourth Proportional to 311,920.57, 430,567.02 and 242,873.53

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Solution

The fourth proportional to 311,920.57, 430,567.02 and 242,873.53 is: 335,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,920.57 : 430,567.02 = 242,873.53 : x
  2. Step 2: Convert to fraction form
    311,920.57/430,567.02 = 242,873.53/x
  3. Step 3: Cross multiply
    311,920.57x = 430,567.02 × 242,873.53
  4. Step 4: Simplify right side
    311,920.57x = 104,573,332,048.98
  5. Step 5: Solve for x
    x = 104,573,332,048.98/311,920.57
  6. Step 6: Final answer
    x = 335,256.29

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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.