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Finding the Fourth Proportional to 187,313.48, 258,492.48 and 102,430.54

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Solution

The fourth proportional to 187,313.48, 258,492.48 and 102,430.54 is: 141,354.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,313.48 : 258,492.48 = 102,430.54 : x
  2. Step 2: Convert to fraction form
    187,313.48/258,492.48 = 102,430.54/x
  3. Step 3: Cross multiply
    187,313.48x = 258,492.48 × 102,430.54
  4. Step 4: Simplify right side
    187,313.48x = 26,477,523,019.88
  5. Step 5: Solve for x
    x = 26,477,523,019.88/187,313.48
  6. Step 6: Final answer
    x = 141,354.08

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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.