Home / 315,331.40-472,997.10-165,513.80

Finding the Fourth Proportional to 315,331.40, 472,997.10 and 165,513.80

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Solution

The fourth proportional to 315,331.40, 472,997.10 and 165,513.80 is: 248,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,331.40 : 472,997.10 = 165,513.80 : x
  2. Step 2: Convert to fraction form
    315,331.40/472,997.10 = 165,513.80/x
  3. Step 3: Cross multiply
    315,331.40x = 472,997.10 × 165,513.80
  4. Step 4: Simplify right side
    315,331.40x = 78,287,547,409.98
  5. Step 5: Solve for x
    x = 78,287,547,409.98/315,331.40
  6. Step 6: Final answer
    x = 248,270.70

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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.