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Finding the Fourth Proportional to 228,363.11, 315,130.24 and 124,995.03

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Solution

The fourth proportional to 228,363.11, 315,130.24 and 124,995.03 is: 172,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,363.11 : 315,130.24 = 124,995.03 : x
  2. Step 2: Convert to fraction form
    228,363.11/315,130.24 = 124,995.03/x
  3. Step 3: Cross multiply
    228,363.11x = 315,130.24 × 124,995.03
  4. Step 4: Simplify right side
    228,363.11x = 39,389,713,802.71
  5. Step 5: Solve for x
    x = 39,389,713,802.71/228,363.11
  6. Step 6: Final answer
    x = 172,487.20

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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.