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Finding the Fourth Proportional to 314,379.39, 433,776.28 and 187,030.11

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Solution

The fourth proportional to 314,379.39, 433,776.28 and 187,030.11 is: 258,061.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,379.39 : 433,776.28 = 187,030.11 : x
  2. Step 2: Convert to fraction form
    314,379.39/433,776.28 = 187,030.11/x
  3. Step 3: Cross multiply
    314,379.39x = 433,776.28 × 187,030.11
  4. Step 4: Simplify right side
    314,379.39x = 81,129,225,363.79
  5. Step 5: Solve for x
    x = 81,129,225,363.79/314,379.39
  6. Step 6: Final answer
    x = 258,061.53

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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.