Home / 220,111.05-303,209.14-187,740.21

Finding the Fourth Proportional to 220,111.05, 303,209.14 and 187,740.21

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Solution

The fourth proportional to 220,111.05, 303,209.14 and 187,740.21 is: 258,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,111.05 : 303,209.14 = 187,740.21 : x
  2. Step 2: Convert to fraction form
    220,111.05/303,209.14 = 187,740.21/x
  3. Step 3: Cross multiply
    220,111.05x = 303,209.14 × 187,740.21
  4. Step 4: Simplify right side
    220,111.05x = 56,924,547,617.52
  5. Step 5: Solve for x
    x = 56,924,547,617.52/220,111.05
  6. Step 6: Final answer
    x = 258,617.40

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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.