Home / 370,485.30-511,263.06-209,336.91

Finding the Fourth Proportional to 370,485.30, 511,263.06 and 209,336.91

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Solution

The fourth proportional to 370,485.30, 511,263.06 and 209,336.91 is: 288,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,485.30 : 511,263.06 = 209,336.91 : x
  2. Step 2: Convert to fraction form
    370,485.30/511,263.06 = 209,336.91/x
  3. Step 3: Cross multiply
    370,485.30x = 511,263.06 × 209,336.91
  4. Step 4: Simplify right side
    370,485.30x = 107,026,229,177.55
  5. Step 5: Solve for x
    x = 107,026,229,177.55/370,485.30
  6. Step 6: Final answer
    x = 288,881.18

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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.