Home / 210,200.64-289,584-146,423.04

Finding the Fourth Proportional to 210,200.64, 289,584 and 146,423.04

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Solution

The fourth proportional to 210,200.64, 289,584 and 146,423.04 is: 201,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,200.64 : 289,584 = 146,423.04 : x
  2. Step 2: Convert to fraction form
    210,200.64/289,584 = 146,423.04/x
  3. Step 3: Cross multiply
    210,200.64x = 289,584 × 146,423.04
  4. Step 4: Simplify right side
    210,200.64x = 42,401,769,615.36
  5. Step 5: Solve for x
    x = 42,401,769,615.36/210,200.64
  6. Step 6: Final answer
    x = 201,720.46

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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.