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Finding the Fourth Proportional to 315,615.40, 473,008.38 and 149,450.92

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Solution

The fourth proportional to 315,615.40, 473,008.38 and 149,450.92 is: 223,980.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,615.40 : 473,008.38 = 149,450.92 : x
  2. Step 2: Convert to fraction form
    315,615.40/473,008.38 = 149,450.92/x
  3. Step 3: Cross multiply
    315,615.40x = 473,008.38 × 149,450.92
  4. Step 4: Simplify right side
    315,615.40x = 70,691,537,558.71
  5. Step 5: Solve for x
    x = 70,691,537,558.71/315,615.40
  6. Step 6: Final answer
    x = 223,980.00

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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.