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Finding the Fourth Proportional to 343,312.60, 514,968.90 and 329,315.80

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Solution

The fourth proportional to 343,312.60, 514,968.90 and 329,315.80 is: 493,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,312.60 : 514,968.90 = 329,315.80 : x
  2. Step 2: Convert to fraction form
    343,312.60/514,968.90 = 329,315.80/x
  3. Step 3: Cross multiply
    343,312.60x = 514,968.90 × 329,315.80
  4. Step 4: Simplify right side
    343,312.60x = 169,587,395,278.62
  5. Step 5: Solve for x
    x = 169,587,395,278.62/343,312.60
  6. Step 6: Final answer
    x = 493,973.70

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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.