Home / 400,125.02-552,164.72-218,836.35

Finding the Fourth Proportional to 400,125.02, 552,164.72 and 218,836.35

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Solution

The fourth proportional to 400,125.02, 552,164.72 and 218,836.35 is: 301,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,125.02 : 552,164.72 = 218,836.35 : x
  2. Step 2: Convert to fraction form
    400,125.02/552,164.72 = 218,836.35/x
  3. Step 3: Cross multiply
    400,125.02x = 552,164.72 × 218,836.35
  4. Step 4: Simplify right side
    400,125.02x = 120,833,710,829.39
  5. Step 5: Solve for x
    x = 120,833,710,829.39/400,125.02
  6. Step 6: Final answer
    x = 301,989.89

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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.