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Finding the Fourth Proportional to 318,848.40, 440,013.60 and 175,613.40

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Solution

The fourth proportional to 318,848.40, 440,013.60 and 175,613.40 is: 242,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,848.40 : 440,013.60 = 175,613.40 : x
  2. Step 2: Convert to fraction form
    318,848.40/440,013.60 = 175,613.40/x
  3. Step 3: Cross multiply
    318,848.40x = 440,013.60 × 175,613.40
  4. Step 4: Simplify right side
    318,848.40x = 77,272,284,342.24
  5. Step 5: Solve for x
    x = 77,272,284,342.24/318,848.40
  6. Step 6: Final answer
    x = 242,348.04

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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.