Home / 475,215.09-655,271.44-302,860.27

Finding the Fourth Proportional to 475,215.09, 655,271.44 and 302,860.27

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Solution

The fourth proportional to 475,215.09, 655,271.44 and 302,860.27 is: 417,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,215.09 : 655,271.44 = 302,860.27 : x
  2. Step 2: Convert to fraction form
    475,215.09/655,271.44 = 302,860.27/x
  3. Step 3: Cross multiply
    475,215.09x = 655,271.44 × 302,860.27
  4. Step 4: Simplify right side
    475,215.09x = 198,455,685,241.69
  5. Step 5: Solve for x
    x = 198,455,685,241.69/475,215.09
  6. Step 6: Final answer
    x = 417,612.34

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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.