Home / 228,298.70-315,030.75-154,561.13

Finding the Fourth Proportional to 228,298.70, 315,030.75 and 154,561.13

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Solution

The fourth proportional to 228,298.70, 315,030.75 and 154,561.13 is: 213,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,298.70 : 315,030.75 = 154,561.13 : x
  2. Step 2: Convert to fraction form
    228,298.70/315,030.75 = 154,561.13/x
  3. Step 3: Cross multiply
    228,298.70x = 315,030.75 × 154,561.13
  4. Step 4: Simplify right side
    228,298.70x = 48,691,508,166.06
  5. Step 5: Solve for x
    x = 48,691,508,166.06/228,298.70
  6. Step 6: Final answer
    x = 213,279.83

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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.