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Finding the Fourth Proportional to 296,779.10, 409,550.94 and 160,809.86

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Solution

The fourth proportional to 296,779.10, 409,550.94 and 160,809.86 is: 221,915.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,779.10 : 409,550.94 = 160,809.86 : x
  2. Step 2: Convert to fraction form
    296,779.10/409,550.94 = 160,809.86/x
  3. Step 3: Cross multiply
    296,779.10x = 409,550.94 × 160,809.86
  4. Step 4: Simplify right side
    296,779.10x = 65,859,829,324.27
  5. Step 5: Solve for x
    x = 65,859,829,324.27/296,779.10
  6. Step 6: Final answer
    x = 221,915.32

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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.