Home / 228,617.10-342,860.04-78,851.34

Finding the Fourth Proportional to 228,617.10, 342,860.04 and 78,851.34

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Solution

The fourth proportional to 228,617.10, 342,860.04 and 78,851.34 is: 118,254.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,617.10 : 342,860.04 = 78,851.34 : x
  2. Step 2: Convert to fraction form
    228,617.10/342,860.04 = 78,851.34/x
  3. Step 3: Cross multiply
    228,617.10x = 342,860.04 × 78,851.34
  4. Step 4: Simplify right side
    228,617.10x = 27,034,973,586.45
  5. Step 5: Solve for x
    x = 27,034,973,586.45/228,617.10
  6. Step 6: Final answer
    x = 118,254.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.