Home / 318,430.05-439,433.45-175,187.02

Finding the Fourth Proportional to 318,430.05, 439,433.45 and 175,187.02

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Solution

The fourth proportional to 318,430.05, 439,433.45 and 175,187.02 is: 241,758.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,430.05 : 439,433.45 = 175,187.02 : x
  2. Step 2: Convert to fraction form
    318,430.05/439,433.45 = 175,187.02/x
  3. Step 3: Cross multiply
    318,430.05x = 439,433.45 × 175,187.02
  4. Step 4: Simplify right side
    318,430.05x = 76,983,036,593.82
  5. Step 5: Solve for x
    x = 76,983,036,593.82/318,430.05
  6. Step 6: Final answer
    x = 241,758.08

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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.