Home / 259,746.30-389,669.67-99,810.18

Finding the Fourth Proportional to 259,746.30, 389,669.67 and 99,810.18

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Solution

The fourth proportional to 259,746.30, 389,669.67 and 99,810.18 is: 149,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,746.30 : 389,669.67 = 99,810.18 : x
  2. Step 2: Convert to fraction form
    259,746.30/389,669.67 = 99,810.18/x
  3. Step 3: Cross multiply
    259,746.30x = 389,669.67 × 99,810.18
  4. Step 4: Simplify right side
    259,746.30x = 38,892,999,903.24
  5. Step 5: Solve for x
    x = 38,892,999,903.24/259,746.30
  6. Step 6: Final answer
    x = 149,734.57

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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.