Home / 217,417.42-299,933.85-153,790.30

Finding the Fourth Proportional to 217,417.42, 299,933.85 and 153,790.30

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Solution

The fourth proportional to 217,417.42, 299,933.85 and 153,790.30 is: 212,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,417.42 : 299,933.85 = 153,790.30 : x
  2. Step 2: Convert to fraction form
    217,417.42/299,933.85 = 153,790.30/x
  3. Step 3: Cross multiply
    217,417.42x = 299,933.85 × 153,790.30
  4. Step 4: Simplify right side
    217,417.42x = 46,126,916,771.66
  5. Step 5: Solve for x
    x = 46,126,916,771.66/217,417.42
  6. Step 6: Final answer
    x = 212,158.33

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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.