Home / 237,807.22-328,174.40-128,911.22

Finding the Fourth Proportional to 237,807.22, 328,174.40 and 128,911.22

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Solution

The fourth proportional to 237,807.22, 328,174.40 and 128,911.22 is: 177,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,807.22 : 328,174.40 = 128,911.22 : x
  2. Step 2: Convert to fraction form
    237,807.22/328,174.40 = 128,911.22/x
  3. Step 3: Cross multiply
    237,807.22x = 328,174.40 × 128,911.22
  4. Step 4: Simplify right side
    237,807.22x = 42,305,361,276.89
  5. Step 5: Solve for x
    x = 42,305,361,276.89/237,807.22
  6. Step 6: Final answer
    x = 177,897.72

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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.