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Finding the Fourth Proportional to 296,607.88, 409,316.80 and 160,638.76

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Solution

The fourth proportional to 296,607.88, 409,316.80 and 160,638.76 is: 221,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,607.88 : 409,316.80 = 160,638.76 : x
  2. Step 2: Convert to fraction form
    296,607.88/409,316.80 = 160,638.76/x
  3. Step 3: Cross multiply
    296,607.88x = 409,316.80 × 160,638.76
  4. Step 4: Simplify right side
    296,607.88x = 65,752,143,199.17
  5. Step 5: Solve for x
    x = 65,752,143,199.17/296,607.88
  6. Step 6: Final answer
    x = 221,680.37

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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.