Home / 280,841.42-387,466.53-159,897.13

Finding the Fourth Proportional to 280,841.42, 387,466.53 and 159,897.13

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Solution

The fourth proportional to 280,841.42, 387,466.53 and 159,897.13 is: 220,604.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,841.42 : 387,466.53 = 159,897.13 : x
  2. Step 2: Convert to fraction form
    280,841.42/387,466.53 = 159,897.13/x
  3. Step 3: Cross multiply
    280,841.42x = 387,466.53 × 159,897.13
  4. Step 4: Simplify right side
    280,841.42x = 61,954,786,118.06
  5. Step 5: Solve for x
    x = 61,954,786,118.06/280,841.42
  6. Step 6: Final answer
    x = 220,604.16

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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.