Home / 279,205.79-384,331.23-243,334.13

Finding the Fourth Proportional to 279,205.79, 384,331.23 and 243,334.13

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Solution

The fourth proportional to 279,205.79, 384,331.23 and 243,334.13 is: 334,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,205.79 : 384,331.23 = 243,334.13 : x
  2. Step 2: Convert to fraction form
    279,205.79/384,331.23 = 243,334.13/x
  3. Step 3: Cross multiply
    279,205.79x = 384,331.23 × 243,334.13
  4. Step 4: Simplify right side
    279,205.79x = 93,520,903,562.22
  5. Step 5: Solve for x
    x = 93,520,903,562.22/279,205.79
  6. Step 6: Final answer
    x = 334,953.32

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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.