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Finding the Fourth Proportional to 391,666.66, 540,493.77 and 230,502.58

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Solution

The fourth proportional to 391,666.66, 540,493.77 and 230,502.58 is: 318,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,666.66 : 540,493.77 = 230,502.58 : x
  2. Step 2: Convert to fraction form
    391,666.66/540,493.77 = 230,502.58/x
  3. Step 3: Cross multiply
    391,666.66x = 540,493.77 × 230,502.58
  4. Step 4: Simplify right side
    391,666.66x = 124,585,208,458.93
  5. Step 5: Solve for x
    x = 124,585,208,458.93/391,666.66
  6. Step 6: Final answer
    x = 318,089.90

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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.