Home / 475,131.55-655,156.12-302,776.51

Finding the Fourth Proportional to 475,131.55, 655,156.12 and 302,776.51

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Solution

The fourth proportional to 475,131.55, 655,156.12 and 302,776.51 is: 417,496.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,131.55 : 655,156.12 = 302,776.51 : x
  2. Step 2: Convert to fraction form
    475,131.55/655,156.12 = 302,776.51/x
  3. Step 3: Cross multiply
    475,131.55x = 655,156.12 × 302,776.51
  4. Step 4: Simplify right side
    475,131.55x = 198,365,883,518.74
  5. Step 5: Solve for x
    x = 198,365,883,518.74/475,131.55
  6. Step 6: Final answer
    x = 417,496.76

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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.