Home / 400,355.10-552,485.34-219,064.95

Finding the Fourth Proportional to 400,355.10, 552,485.34 and 219,064.95

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Solution

The fourth proportional to 400,355.10, 552,485.34 and 219,064.95 is: 302,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,355.10 : 552,485.34 = 219,064.95 : x
  2. Step 2: Convert to fraction form
    400,355.10/552,485.34 = 219,064.95/x
  3. Step 3: Cross multiply
    400,355.10x = 552,485.34 × 219,064.95
  4. Step 4: Simplify right side
    400,355.10x = 121,030,173,382.83
  5. Step 5: Solve for x
    x = 121,030,173,382.83/400,355.10
  6. Step 6: Final answer
    x = 302,307.06

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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.