Home / 266,603.48-367,921.68-145,742.12

Finding the Fourth Proportional to 266,603.48, 367,921.68 and 145,742.12

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Solution

The fourth proportional to 266,603.48, 367,921.68 and 145,742.12 is: 201,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,603.48 : 367,921.68 = 145,742.12 : x
  2. Step 2: Convert to fraction form
    266,603.48/367,921.68 = 145,742.12/x
  3. Step 3: Cross multiply
    266,603.48x = 367,921.68 × 145,742.12
  4. Step 4: Simplify right side
    266,603.48x = 53,621,685,637.16
  5. Step 5: Solve for x
    x = 53,621,685,637.16/266,603.48
  6. Step 6: Final answer
    x = 201,128.98

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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.