Home / 306,967.10-423,627.65-171,000.88

Finding the Fourth Proportional to 306,967.10, 423,627.65 and 171,000.88

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Solution

The fourth proportional to 306,967.10, 423,627.65 and 171,000.88 is: 235,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,967.10 : 423,627.65 = 171,000.88 : x
  2. Step 2: Convert to fraction form
    306,967.10/423,627.65 = 171,000.88/x
  3. Step 3: Cross multiply
    306,967.10x = 423,627.65 × 171,000.88
  4. Step 4: Simplify right side
    306,967.10x = 72,440,700,310.77
  5. Step 5: Solve for x
    x = 72,440,700,310.77/306,967.10
  6. Step 6: Final answer
    x = 235,988.49

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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.