Home / 370,205.60-555,308.40-212,304.20

Finding the Fourth Proportional to 370,205.60, 555,308.40 and 212,304.20

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Solution

The fourth proportional to 370,205.60, 555,308.40 and 212,304.20 is: 318,456.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,205.60 : 555,308.40 = 212,304.20 : x
  2. Step 2: Convert to fraction form
    370,205.60/555,308.40 = 212,304.20/x
  3. Step 3: Cross multiply
    370,205.60x = 555,308.40 × 212,304.20
  4. Step 4: Simplify right side
    370,205.60x = 117,894,305,615.28
  5. Step 5: Solve for x
    x = 117,894,305,615.28/370,205.60
  6. Step 6: Final answer
    x = 318,456.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.