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Finding the Fourth Proportional to 228,294.59, 315,018.93 and 131,530.10

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Solution

The fourth proportional to 228,294.59, 315,018.93 and 131,530.10 is: 181,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,294.59 : 315,018.93 = 131,530.10 : x
  2. Step 2: Convert to fraction form
    228,294.59/315,018.93 = 131,530.10/x
  3. Step 3: Cross multiply
    228,294.59x = 315,018.93 × 131,530.10
  4. Step 4: Simplify right side
    228,294.59x = 41,434,471,364.79
  5. Step 5: Solve for x
    x = 41,434,471,364.79/228,294.59
  6. Step 6: Final answer
    x = 181,495.63

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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.