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Finding the Fourth Proportional to 283,154.82, 424,994.76 and 143,011.86

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Solution

The fourth proportional to 283,154.82, 424,994.76 and 143,011.86 is: 214,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,154.82 : 424,994.76 = 143,011.86 : x
  2. Step 2: Convert to fraction form
    283,154.82/424,994.76 = 143,011.86/x
  3. Step 3: Cross multiply
    283,154.82x = 424,994.76 × 143,011.86
  4. Step 4: Simplify right side
    283,154.82x = 60,779,291,117.85
  5. Step 5: Solve for x
    x = 60,779,291,117.85/283,154.82
  6. Step 6: Final answer
    x = 214,650.38

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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.