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Finding the Fourth Proportional to 311,567.16, 429,962.88 and 168,327.14

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Solution

The fourth proportional to 311,567.16, 429,962.88 and 168,327.14 is: 232,291.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,567.16 : 429,962.88 = 168,327.14 : x
  2. Step 2: Convert to fraction form
    311,567.16/429,962.88 = 168,327.14/x
  3. Step 3: Cross multiply
    311,567.16x = 429,962.88 × 168,327.14
  4. Step 4: Simplify right side
    311,567.16x = 72,374,421,896.56
  5. Step 5: Solve for x
    x = 72,374,421,896.56/311,567.16
  6. Step 6: Final answer
    x = 232,291.56

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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.