Home / 389,416.60-537,509.90-228,306.52

Finding the Fourth Proportional to 389,416.60, 537,509.90 and 228,306.52

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Solution

The fourth proportional to 389,416.60, 537,509.90 and 228,306.52 is: 315,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,416.60 : 537,509.90 = 228,306.52 : x
  2. Step 2: Convert to fraction form
    389,416.60/537,509.90 = 228,306.52/x
  3. Step 3: Cross multiply
    389,416.60x = 537,509.90 × 228,306.52
  4. Step 4: Simplify right side
    389,416.60x = 122,717,014,734.55
  5. Step 5: Solve for x
    x = 122,717,014,734.55/389,416.60
  6. Step 6: Final answer
    x = 315,130.41

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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.