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Finding the Fourth Proportional to 299,343.85, 413,103.49 and 163,386.72

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Solution

The fourth proportional to 299,343.85, 413,103.49 and 163,386.72 is: 225,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,343.85 : 413,103.49 = 163,386.72 : x
  2. Step 2: Convert to fraction form
    299,343.85/413,103.49 = 163,386.72/x
  3. Step 3: Cross multiply
    299,343.85x = 413,103.49 × 163,386.72
  4. Step 4: Simplify right side
    299,343.85x = 67,495,624,762.24
  5. Step 5: Solve for x
    x = 67,495,624,762.24/299,343.85
  6. Step 6: Final answer
    x = 225,478.57

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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.