Home / 370,223.60-555,335.40-212,322.20

Finding the Fourth Proportional to 370,223.60, 555,335.40 and 212,322.20

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Solution

The fourth proportional to 370,223.60, 555,335.40 and 212,322.20 is: 318,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,223.60 : 555,335.40 = 212,322.20 : x
  2. Step 2: Convert to fraction form
    370,223.60/555,335.40 = 212,322.20/x
  3. Step 3: Cross multiply
    370,223.60x = 555,335.40 × 212,322.20
  4. Step 4: Simplify right side
    370,223.60x = 117,910,033,865.88
  5. Step 5: Solve for x
    x = 117,910,033,865.88/370,223.60
  6. Step 6: Final answer
    x = 318,483.30

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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.