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Finding the Fourth Proportional to 318,566.71, 477,933.36 and 118,888.89

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Solution

The fourth proportional to 318,566.71, 477,933.36 and 118,888.89 is: 178,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,566.71 : 477,933.36 = 118,888.89 : x
  2. Step 2: Convert to fraction form
    318,566.71/477,933.36 = 118,888.89/x
  3. Step 3: Cross multiply
    318,566.71x = 477,933.36 × 118,888.89
  4. Step 4: Simplify right side
    318,566.71x = 56,820,966,664.37
  5. Step 5: Solve for x
    x = 56,820,966,664.37/318,566.71
  6. Step 6: Final answer
    x = 178,364.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.