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Finding the Fourth Proportional to 555,277.80, 832,302.30 and 306,138.60

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Solution

The fourth proportional to 555,277.80, 832,302.30 and 306,138.60 is: 458,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,277.80 : 832,302.30 = 306,138.60 : x
  2. Step 2: Convert to fraction form
    555,277.80/832,302.30 = 306,138.60/x
  3. Step 3: Cross multiply
    555,277.80x = 832,302.30 × 306,138.60
  4. Step 4: Simplify right side
    555,277.80x = 254,799,860,898.78
  5. Step 5: Solve for x
    x = 254,799,860,898.78/555,277.80
  6. Step 6: Final answer
    x = 458,869.17

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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.