Home / 389,107.60-537,088.12-228,014.53

Finding the Fourth Proportional to 389,107.60, 537,088.12 and 228,014.53

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Solution

The fourth proportional to 389,107.60, 537,088.12 and 228,014.53 is: 314,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,107.60 : 537,088.12 = 228,014.53 : x
  2. Step 2: Convert to fraction form
    389,107.60/537,088.12 = 228,014.53/x
  3. Step 3: Cross multiply
    389,107.60x = 537,088.12 × 228,014.53
  4. Step 4: Simplify right side
    389,107.60x = 122,463,893,337.63
  5. Step 5: Solve for x
    x = 122,463,893,337.63/389,107.60
  6. Step 6: Final answer
    x = 314,730.15

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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.