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Finding the Fourth Proportional to 226,368.84, 312,389.00 and 130,881.69

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Solution

The fourth proportional to 226,368.84, 312,389.00 and 130,881.69 is: 180,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,368.84 : 312,389.00 = 130,881.69 : x
  2. Step 2: Convert to fraction form
    226,368.84/312,389.00 = 130,881.69/x
  3. Step 3: Cross multiply
    226,368.84x = 312,389.00 × 130,881.69
  4. Step 4: Simplify right side
    226,368.84x = 40,886,000,830.02
  5. Step 5: Solve for x
    x = 40,886,000,830.02/226,368.84
  6. Step 6: Final answer
    x = 180,616.73

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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.