Home / 288,299.15-397,829.90-167,420.55

Finding the Fourth Proportional to 288,299.15, 397,829.90 and 167,420.55

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Solution

The fourth proportional to 288,299.15, 397,829.90 and 167,420.55 is: 231,027.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,299.15 : 397,829.90 = 167,420.55 : x
  2. Step 2: Convert to fraction form
    288,299.15/397,829.90 = 167,420.55/x
  3. Step 3: Cross multiply
    288,299.15x = 397,829.90 × 167,420.55
  4. Step 4: Simplify right side
    288,299.15x = 66,604,899,827.34
  5. Step 5: Solve for x
    x = 66,604,899,827.34/288,299.15
  6. Step 6: Final answer
    x = 231,027.05

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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.