Home / 370,348.16-511,078.08-209,255.36

Finding the Fourth Proportional to 370,348.16, 511,078.08 and 209,255.36

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Solution

The fourth proportional to 370,348.16, 511,078.08 and 209,255.36 is: 288,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,348.16 : 511,078.08 = 209,255.36 : x
  2. Step 2: Convert to fraction form
    370,348.16/511,078.08 = 209,255.36/x
  3. Step 3: Cross multiply
    370,348.16x = 511,078.08 × 209,255.36
  4. Step 4: Simplify right side
    370,348.16x = 106,945,827,618.51
  5. Step 5: Solve for x
    x = 106,945,827,618.51/370,348.16
  6. Step 6: Final answer
    x = 288,771.05

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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.