Home / 228,289.02-315,048.12-126,312.82

Finding the Fourth Proportional to 228,289.02, 315,048.12 and 126,312.82

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Solution

The fourth proportional to 228,289.02, 315,048.12 and 126,312.82 is: 174,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,289.02 : 315,048.12 = 126,312.82 : x
  2. Step 2: Convert to fraction form
    228,289.02/315,048.12 = 126,312.82/x
  3. Step 3: Cross multiply
    228,289.02x = 315,048.12 × 126,312.82
  4. Step 4: Simplify right side
    228,289.02x = 39,794,616,472.90
  5. Step 5: Solve for x
    x = 39,794,616,472.90/228,289.02
  6. Step 6: Final answer
    x = 174,316.82

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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.