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Finding the Fourth Proportional to 379,645.51, 569,252.59 and 154,742.53

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Solution

The fourth proportional to 379,645.51, 569,252.59 and 154,742.53 is: 232,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,645.51 : 569,252.59 = 154,742.53 : x
  2. Step 2: Convert to fraction form
    379,645.51/569,252.59 = 154,742.53/x
  3. Step 3: Cross multiply
    379,645.51x = 569,252.59 × 154,742.53
  4. Step 4: Simplify right side
    379,645.51x = 88,087,585,985.65
  5. Step 5: Solve for x
    x = 88,087,585,985.65/379,645.51
  6. Step 6: Final answer
    x = 232,025.89

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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.