Home / 400,023.02-552,031.71-218,735.07

Finding the Fourth Proportional to 400,023.02, 552,031.71 and 218,735.07

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Solution

The fourth proportional to 400,023.02, 552,031.71 and 218,735.07 is: 301,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,023.02 : 552,031.71 = 218,735.07 : x
  2. Step 2: Convert to fraction form
    400,023.02/552,031.71 = 218,735.07/x
  3. Step 3: Cross multiply
    400,023.02x = 552,031.71 × 218,735.07
  4. Step 4: Simplify right side
    400,023.02x = 120,748,691,968.91
  5. Step 5: Solve for x
    x = 120,748,691,968.91/400,023.02
  6. Step 6: Final answer
    x = 301,854.36

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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.