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Finding the Fourth Proportional to 228,421.69, 314,658.48 and 194,320.90

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Solution

The fourth proportional to 228,421.69, 314,658.48 and 194,320.90 is: 267,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,421.69 : 314,658.48 = 194,320.90 : x
  2. Step 2: Convert to fraction form
    228,421.69/314,658.48 = 194,320.90/x
  3. Step 3: Cross multiply
    228,421.69x = 314,658.48 × 194,320.90
  4. Step 4: Simplify right side
    228,421.69x = 61,144,719,026.23
  5. Step 5: Solve for x
    x = 61,144,719,026.23/228,421.69
  6. Step 6: Final answer
    x = 267,683.51

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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.