Home / 217,421.42-299,939.36-153,794.30

Finding the Fourth Proportional to 217,421.42, 299,939.36 and 153,794.30

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Solution

The fourth proportional to 217,421.42, 299,939.36 and 153,794.30 is: 212,163.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,421.42 : 299,939.36 = 153,794.30 : x
  2. Step 2: Convert to fraction form
    217,421.42/299,939.36 = 153,794.30/x
  3. Step 3: Cross multiply
    217,421.42x = 299,939.36 × 153,794.30
  4. Step 4: Simplify right side
    217,421.42x = 46,128,963,913.65
  5. Step 5: Solve for x
    x = 46,128,963,913.65/217,421.42
  6. Step 6: Final answer
    x = 212,163.84

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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.